使用moment.js轻松管理日期和时间
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格式化日期
当前时间：
moment().format('YYYY-MM-DD HH:mm:ss'); //2014-09-24 23:36:09
今天是星期几：
moment().format('d'); //3
转换当前时间的Unix时间戳：
moment().format('X');
相对时间
20120901相对当前日期是2年前
moment("20120901", "YYYYMMDD").fromNow(); //2 years ago
7天后的日期：
moment().add('days',7).format('YYYY年MM月DD日'); //2014年10月01日
9小时后的时间：
moment().add('hours',9).format('HH:mm:ss');
当前时间：moment().format('YYYY-MM-DD HH:mm:ss');
2017-10-25 10:21:40今天是星期几：moment().format('d');
3Unix时间戳：moment().format('X');
1508898100相对时间：moment("20130101", "YYYYMMDD").fromNow();
5 years ago相对时间：moment("20151010", "YYYYMMDD").fromNow();
2 years ago7天后的日期：moment().add('days',7).format('YYYY年MM月DD日');
2017年11月01日9小时后：moment().add('hours',9).format('HH:mm:ss');
19:21:40明天moment().add(1, 'days').calendar();
Tomorrow at 10:21 AMmoment.js提供了丰富的说明文档，使用它还可以创建日历项目等复杂的日期时间应用。我们日常开发中最常用的是格式化时间，下面我把常用的格式制作成表格说明供有需要的朋友查看：
格式代码说明返回值例子M数字表示的月份，没有前导零1到12MM数字表示的月份，有前导零01到12MMM三个字母缩写表示的月份Jan到DecMMMM月份，完整的文本格式January到DecemberQ季度1到4D月份中的第几天，没有前导零1到31DD月份中的第几天，有前导零01到31d星期中的第几天，数字表示0到6，0表示周日，6表示周六ddd三个字母表示星期中的第几天Sun到Satdddd星期几，完整的星期文本从Sunday到Saturdayw年份中的第几周如42：表示第42周YYYY四位数字完整表示的年份如：2014 或 2000YY两位数字表示的年份如：14 或 98A大写的AM PMAM PMa小写的am pmam pmHH小时，24小时制，有前导零00到23H小时，24小时制，无前导零0到23hh小时，12小时制，有前导零00到12h小时，12小时制，无前导零0到12m没有前导零的分钟数0到59mm有前导零的分钟数00到59s没有前导零的秒数1到59ss有前导零的描述01到59XUnix时间戳1411572969当前时间 1.0.0+
moment();获取当前时间，方法等同于 new Date()
var now = moment(); 字符串 1.0.0+
moment(String);When creating a moment from a string, we first check if the string matches known ISO 8601 formats, then fall back to new Date(string) if a known format is not found.
var day = moment("1995-12-25");Warning: Browser support for parsing strings is inconsistent. Because there is no specification on which formats should be supported, what works in some browsers will not work in other browsers.
For consistent results parsing anything other than ISO 8601 strings, you should use String + Format.
Supported ISO 8601 strings
An ISO 8601 string requires a date part.
2013-02-08 # A calendar date part2013-W06-5 # A week date part2013-039 # An ordinal date partA time part can also be included, separated from the date part by a space or a uppercase T.
2013-02-08T09 # An hour time part separated by a T2013-02-08 09 # An hour time part separated by a space2013-02-08 09:30 # An hour and minute time part2013-02-08 09:30:26 # An hour, minute, and second time part2013-02-08 09:30:26.123 # An hour, minute, second, and millisecond time part2013-02-08 24:00:00.000 # hour 24, minute, second, millisecond equal 0 means next day at midnightAny of the date parts can have a time part.
2013-02-08 09 # A calendar date part and hour time part2013-W06-5 09 # A week date part and hour time part2013-039 09 # An ordinal date part and hour time partIf a time part is included, an offset from UTC can also be included as +-HH:mm, +-HHmm, or Z.
2013-02-08 09+07:00 # +-HH:mm2013-02-08 09-0100 # +-HHmm2013-02-08 09Z # Z2013-02-08 09:30:26.123+07:00 # +-HH:mmNote: Automatic cross browser ISO-8601 support was added in version 1.5.0. Support for the week and ordinal formats was added in version 2.3.0.
If a string does not match any of the above formats and is not able to be parsed with Date.parse,moment#isValid will return false.
moment("not a real date").isValid(); // false字符串 + 格式 1.0.0+
编辑moment(String, String);moment(String, String, String);moment(String, String, Boolean);moment(String, String, String, Boolean);If you know the format of an input string, you can use that to parse a moment.
moment("12-25-1995", "MM-DD-YYYY");The parser ignores non-alphanumeric characters, so both of the following will return the same thing.
moment("12-25-1995", "MM-DD-YYYY");moment("12/25/1995", "MM-DD-YYYY");The parsing tokens are similar to the formatting tokens used in moment#format.
Year, month, and day tokens
YYYY20144 or 2 digit yearYY142 digit yearQ1..4Quarter of year. Sets month to first month in quarter.M MM1..12Month numberMMM MMMMJan..DecemberMonth name in locale set by moment.locale()D DD1..31Day of monthDo1st..31stDay of month with ordinalDDD DDDD1..365Day of yearX1410715640.579Unix timestampx1410715640579Unix ms timestampYYYY from version 2.10.5 supports 2 digit years, and converts them to a year near 2000 (same asYY).
Week year, week, and weekday tokens
For these, the lowercase tokens use the locale aware week start days, and the uppercase tokens use the ISO week date start days.
gggg2014Locale 4 digit week yeargg14Locale 2 digit week yearw ww1..53Locale week of yeare1..7Locale day of weekddd ddddMon...SundayDay name in locale set by moment.locale()GGGG2014ISO 4 digit week yearGG14ISO 2 digit week yearW WW1..53ISO week of yearE1..7ISO day of weekHour, minute, second, millisecond, and offset tokens
H HH0..2324 hour timeh hh1..1212 hour time used with a A.a Aam pmPost or ante meridiemm mm0..59Minutess ss0..59SecondsS0..9Tenths of a secondSS0..99Hundreds of a secondSSS0..999Thousandths of a secondSSSS0000..9999fractional secondsZ ZZ+12:00Offset from UTC as +-HH:mm, +-HHmm, or ZFrom version 2.10.5: fractional second tokens length 4 up to 9 can parse any number of digits, but will only consider the top 3 (milliseconds). Use if you have the time printed with many fractional digits and want to consume the input.
Locale aware date and time formats are also available using LT LTS L LL LLL LLLL. They were added in version 2.2.1, except LTS which was added 2.8.4.
Z ZZ were added in version 1.2.0.
S SS SSS were added in version 1.6.0.
X was added in version 2.0.0.
Unless you specify a timezone offset, parsing a string will create a date in the current timezone.
moment("2010-10-20 4:30", "YYYY-MM-DD HH:mm"); // parsed as 4:30 local timemoment("2010-10-20 4:30 +0000", "YYYY-MM-DD HH:mm Z"); // parsed as 4:30 UTCIf the moment that results from the parsed input does not exist, moment#isValid will return false.
moment("2010 13", "YYYY MM").isValid(); // false (not a real month)moment("2010 11 31", "YYYY MM DD").isValid(); // false (not a real day)moment("2010 2 29", "YYYY MM DD").isValid(); // false (not a leap year)moment("2010 notamonth 29", "YYYY MMM DD").isValid(); // false (not a real month name)As of version 2.0.0, a locale key can be passed as the third parameter to moment() andmoment.utc().
moment('2012 juillet', 'YYYY MMM', 'fr');moment('2012 July', 'YYYY MMM', 'en');Moment's parser is very forgiving, and this can lead to undesired behavior. As of version 2.3.0, you may specify a boolean for the last argument to make Moment use strict parsing. Strict parsing requires that the format and input match exactly.
moment('It is 2012-05-25', 'YYYY-MM-DD').isValid(); // truemoment('It is 2012-05-25', 'YYYY-MM-DD', true).isValid(); // falsemoment('2012-05-25', 'YYYY-MM-DD', true).isValid(); // trueYou can use both locale and strictness.
moment('2012-10-14', 'YYYY-MM-DD', 'fr', true);Parsing two digit years
By default, two digit years above 68 are assumed to be in the 1900's and years 68 or below are assumed to be in the 2000's. This can be changed by replacing the moment.parseTwoDigitYearmethod.
字符串 + 多个格式 1.0.0+
编辑moment(String, String[], String, Boolean);If you don't know the exact format of an input string, but know it could be one of many, you can use an array of formats.
This is the same as String + Format, only it will try to match the input to multiple formats.
moment("12-25-1995", ["MM-DD-YYYY", "YYYY-MM-DD"]);Starting in version 2.3.0, Moment uses some simple heuristics to determine which format to use. In order:
- Prefer formats resulting in valid dates over invalid ones.
- Prefer formats that parse more of the string than less and use more of the format than less, i.e. prefer stricter parsing.
- Prefer formats earlier in the array than later.
moment("29-06-1995", ["MM-DD-YYYY", "DD-MM", "DD-MM-YYYY"]); // uses the last formatmoment("05-06-1995", ["MM-DD-YYYY", "DD-MM-YYYY"]); // uses the first formatYou may also specify a locale and strictness argument. They work the same was as they do in the single format case.
moment("29-06-1995", ["MM-DD-YYYY", "DD-MM-YYYY"], 'fr'); // uses 'fr' localemoment("29-06-1995", ["MM-DD-YYYY", "DD-MM-YYYY"], true); // uses strict parsingmoment("05-06-1995", ["MM-DD-YYYY", "DD-MM-YYYY"], 'fr', true); // uses 'fr' locale and strict parsingNote: Parsing multiple formats is considerably slower than parsing a single format. If you can avoid it, it is much faster to parse a single format.
字符串特殊格式 2.7.0+
编辑moment(String, moment.CUSTOM_FORMAT, [String], [Boolean]);moment(String, [..., moment.ISO_8601, ...], [String], [Boolean]);ISO-8601 is a standard for time and duration display. Moment already supports parsing iso-8601 strings, but this can be specified explicitly in the format/list of formats when constructing a moment.
To specify iso-8601 parsing use moment.ISO_8601 constant. More formats will be added in the future.
Examples:
moment("2010-01-01T05:06:07", moment.ISO_8601);moment("2010-01-01T05:06:07", ["YYYY", moment.ISO_8601]);对象 2.2.1+
编辑moment({unit: value, ...});moment({ hour:15, minute:10 });moment({ y :2010, M :3, d :5, h :15, m :10, s :3, ms :123});moment({ year :2010, month :3, day :5, hour :15, minute :10, second :3, millisecond :123});moment({ years:2010, months:3, days:5, hours:15, minutes:10, seconds:3, milliseconds:123});moment({ years:2010, months:3, date:5, hours:15, minutes:10, seconds:3, milliseconds:123});You can create a moment by specifying some of the units in an object.
Omitted units default to 0 or the current date, month, and year.
day and date key both mean day-of-the-month.
date was added in 2.8.4.
Note that like moment(Array) and new Date(year, month, date), months are 0 indexed.
Unix 偏移量 (毫秒) 1.0.0+
编辑moment(Number);Similar to new Date(Number), you can create a moment by passing an integer value representing the number of milliseconds since the Unix Epoch (Jan 1 1970 12AM UTC).
var day = moment(1318781876406);Unix 时间戳 (秒) 1.6.0+
编辑moment.unix(Number)To create a moment from a Unix timestamp (seconds since the Unix Epoch), usemoment.unix(Number).
var day = moment.unix(1318781876);This is implemented as moment(timestamp * 1000), so partial seconds in the input timestamp are included.
var day = moment.unix(1318781876.721);Date 对象 1.0.0+
编辑moment(Date);You can create a Moment with a pre-existing native Javascript Date object.
var day = new Date(2011, 9, 16);var dayWrapper = moment(day);This clones Date object; further changes to the Date won't affect the Moment, and vice-versa.
数组 1.0.0+
编辑moment(Number[]);You can create a moment with an array of numbers that mirror the parameters passed to new Date()
[year, month, day, hour, minute, second, millisecond]moment([2010, 1, 14, 15, 25, 50, 125]); // February 14th, 3:25:50.125 PMAny value past the year is optional, and will default to the lowest possible number.
moment([2010]); // January 1stmoment([2010, 6]); // July 1stmoment([2010, 6, 10]); // July 10thConstruction with an array will create a date in the current timezone. To create a date from an array at UTC, use moment.utc(Number[]).
moment.utc([2010, 1, 14, 15, 25, 50, 125]);Note: Because this mirrors the native Date parameters, months, hours, minutes, seconds, and milliseconds are all zero indexed. Years and days of the month are 1 indexed.
This is often the cause of frustration, especially with months, so take note!
If the date represented by the array does not exist, moment#isValid will return false.
moment([2010, 13]).isValid(); // false (not a real month)moment([2010, 10, 31]).isValid(); // false (not a real day)moment([2010, 1, 29]).isValid(); // false (not a leap year)ASP.NET 1.3.0+
编辑moment(String);Microsoft Web API returns JSON dates in proper ISO-8601 format by default, but older ASP.NET technologies may return dates in JSON as /Date(1198908717056)/ or /Date(1198908717056-0700)/
If a string that matches this format is passed in, it will be parsed correctly.
moment("/Date(1198908717056-0700)/"); // 2007-12-28T23:11:57.056-07:00克隆 1.2.0+
编辑moment(Moment);All moments are mutable. If you want a clone of a moment, you can do so explicitly or implicitly.
Calling moment() on a moment will clone it.
var a = moment([2012]);var b = moment(a);a.year(2000);b.year(); // 2012Additionally, you can call moment#clone to clone a moment.
var a = moment([2012]);var b = a.clone();a.year(2000);b.year(); // 2012UTC 1.5.0+
编辑moment.utc();moment.utc(Number);moment.utc(Number[]);moment.utc(String);moment.utc(String, String);moment.utc(String, String[]);moment.utc(String, String, String);moment.utc(Moment);moment.utc(Date);By default, moment parses and displays in local time.
If you want to parse or display a moment in UTC, you can use moment.utc() instead of moment().
This brings us to an interesting feature of Moment.js. UTC mode.
While in UTC mode, all display methods will display in UTC time instead of local time.
moment().format(); // 2013-02-04T10:35:24-08:00moment.utc().format(); // 2013-02-04T18:35:24+00:00Additionally, while in UTC mode, all getters and setters will internally use the Date#getUTC* andDate#setUTC* methods instead of the Date#get* and Date#set* methods.
moment.utc().seconds(30) === new Date().setUTCSeconds(30);moment.utc().seconds() === new Date().getUTCSeconds();It is important to note that though the displays differ above, they are both the same moment in time.
var a = moment();var b = moment.utc();a.format(); // 2013-02-04T10:35:24-08:00b.format(); // 2013-02-04T18:35:24+00:00a.valueOf(); // 1360002924000b.valueOf(); // 1360002924000Any moment created with moment.utc() will be in UTC mode, and any moment created with moment()will not.
To switch from UTC to local time, you can use moment#utc or moment#local.
var a = moment.utc([2011, 0, 1, 8]);a.hours(); // 8 UTCa.local();a.hours(); // 0 PST时区 2.3.0+
编辑moment.parseZone(String)Moment normally interprets input times as local times (or UTC times if moment.utc() is used). However, often the input string itself contains time zone information. #parseZone parses the time and then sets the zone according to the input string.
moment.parseZone("2013-01-01T00:00:00-13:00").zone(); // 780moment.parseZone is equivalent to parsing the string and using moment#zone to parse the zone.
var s = "2013-01-01T00:00:00-13:00";moment(s).zone(s);Note: this method only works for a single string argument, not a string and format.
合法性校验 1.7.0+
编辑moment().isValid();Moment applies stricter initialization rules than the Date constructor.
new Date(2013, 25, 14).toString(); // "Sat Feb 14 2015 00:00:00 GMT-0500 (EST)"moment([2015, 25, 35]).format(); // 'Invalid date'You can check whether the Moment considers the date invalid using moment#isValid. You can check the metrics used by #isValid using moment#parsingFlags, which returns an object.
The following parsing flags result in an invalid date:
overflow: An overflow of a date field, such as a 13th month, a 32nd day of the month (or a 29th of February on non-leap years), a 367th day of the year, etc.overflowcontains the index of the invalid unit to match#invalidAt(see below);-1means no overflow.invalidMonth: An invalid month name, such asmoment('Marbruary', 'MMMM');. Contains the invalid month string itself, or else null.empty: An input string that contains nothing parsable, such asmoment('this is nonsense');. Boolean.nullInput: Anullinput, likemoment(null);. Boolean.invalidFormat: An empty list of formats, such asmoment('2013-05-25', []). Boolean.userInvalidated: A date created explicitly as invalid, such asmoment.invalid(). Boolean.
Additionally, if the Moment is parsed in strict mode, these flags must be empty for the Moment to be valid:
unusedTokens: array of format substrings not found in the input stringunusedInput: array of input substrings not matched to the format string
Note: Moment's concept of validity became more strict and consistent between 2.2 and 2.3.
Additionally, you can use moment#invalidAt to determine which date unit overflowed.
var m = moment("2011-10-10T10:20:90");m.isValid(); // falsem.invalidAt(); // 5 for secondsThe return value has the following meaning:
- years
- months
- days
- hours
- minutes
- seconds
- milliseconds
Note: In case of multiple wrong units the first one is returned (because days validity may depend on month, for example).
默认值 2.2.1+
编辑moment("15", "hh")You can create a moment object specifying only some of the units, and the rest will be defaulted to the current day, month or year, or 0 for hours, minutes, seconds and milliseconds.
Defaulting to now, when nothing is passed:
moment(); // current date and timeDefaulting to today, when only hours, minutes, seconds and milliseconds are passed:
moment(5, "HH"); // today, 5:00:00.000moment({hour: 5}); // today, 5:00:00.000moment({hour: 5, minute: 10}); // today, 5:10.00.000moment({hour: 5, minute: 10, seconds: 20}); // today, 5:10.20.000moment({hour: 5, minute: 10, seconds: 20, milliseconds: 300}); // today, 5:10.20.300Defaulting to this month and year, when only days and smaller units are passed:
moment(5, "DD"); // this month, 5th day-of-monthmoment("4 05:06:07", "DD hh:mm:ss"); // this month, 4th day-of-month, 05:06:07.000Defaulting to this year, if year is not specified:
moment(3, "MM"); // this year, 3th month (April)moment("Apr 4 05:06:07", "MMM DD hh:mm:ss"); // this year, 5th April, 05:06:07.000取值/赋值
Moment.js uses overloaded getters and setters. You may be familiar with this pattern from its use in jQuery.
Calling these methods without parameters acts as a getter, and calling them with a parameter acts as a setter.
These map to the corresponding function on the native Date object.
moment().seconds(30) === new Date().setSeconds(30);moment().seconds() === new Date().getSeconds();If you are in UTC mode, they will map to the UTC equivalent.
moment.utc().seconds(30) === new Date().setUTCSeconds(30);moment.utc().seconds() === new Date().getUTCSeconds();For convenience, both singular and plural method names exist as of version 2.0.0.
Note: All of these methods mutate the original moment when used as setters.
毫秒 1.3.0+
编辑moment().millisecond(Number);moment().millisecond(); // Numbermoment().milliseconds(Number);moment().milliseconds(); // NumberGets or sets the milliseconds.
Accepts numbers from 0 to 999. If the range is exceeded, it will bubble up to the seconds.
秒 1.0.0+
编辑moment().second(Number);moment().second(); // Numbermoment().seconds(Number);moment().seconds(); // NumberGets or sets the seconds.
Accepts numbers from 0 to 59. If the range is exceeded, it will bubble up to the minutes.
分钟 1.0.0+
编辑moment().minute(Number);moment().minute(); // Numbermoment().minutes(Number);moment().minutes(); // NumberGets or sets the minutes.
Accepts numbers from 0 to 59. If the range is exceeded, it will bubble up to the hours.
小时 1.0.0+
编辑moment().hour(Number);moment().hour(); // Numbermoment().hours(Number);moment().hours(); // NumberGets or sets the hour.
Accepts numbers from 0 to 23. If the range is exceeded, it will bubble up to the day.
日期 1.0.0+
编辑moment().date(Number);moment().date(); // Numbermoment().dates(Number);moment().dates(); // NumberGets or sets the day of the month.
Accepts numbers from 1 to 31. If the range is exceeded, it will bubble up to the months.
Note: Moment#date is for the date of the month, and Moment#day is for the day of the week.
星期 1.3.0+
编辑moment().day(Number|String);moment().day(); // Numbermoment().days(Number|String);moment().days(); // NumberGets or sets the day of the week.
This method can be used to set the day of the week, with Sunday as 0 and Saturday as 6.
If the range is exceeded, it will bubble up to other weeks.
moment().day(-7); // last Sunday (0 - 7)moment().day(7); // next Sunday (0 + 7)moment().day(10); // next Wednesday (3 + 7)moment().day(24); // 3 Wednesdays from now (3 + 7 + 7 + 7)Note: Moment#date is for the date of the month, and Moment#day is for the day of the week.
As of 2.1.0, a day name is also supported. This is parsed in the moment's current locale.
moment().day("Sunday");moment().day("Monday");星期 (区域标准) 2.1.0+
编辑moment().weekday(Number);moment().weekday(); // NumberGets or sets the day of the week according to the locale.
If the locale assigns Monday as the first day of the week, moment().weekday(0) will be Monday. If Sunday is the first day of the week, moment().weekday(0) will be Sunday.
As with moment#day, if the range is exceeded, it will bubble up to other weeks.
// when Monday is the first day of the weekmoment().weekday(-7); // last Mondaymoment().weekday(7); // next Monday// when Sunday is the first day of the weekmoment().weekday(-7); // last Sundaymoment().weekday(7); // next Sunday星期 (ISO) 2.1.0+
编辑moment().isoWeekday(Number);moment().isoWeekday(); // NumberGets or sets the ISO day of the week with 1 being Monday and 7 being Sunday.
moment().isoWeekday(1); // Mondaymoment().isoWeekday(7); // Sunday天 2.0.0+
编辑moment().dayOfYear(Number);moment().dayOfYear(); // NumberGets or sets the day of the year.
Accepts numbers from 1 to 366. If the range is exceeded, it will bubble up to the years.
周 2.0.0+
编辑moment().week(Number);moment().week(); // Numbermoment().weeks(Number);moment().weeks(); // NumberGets or sets the week of the year.
Because different locales define week of year numbering differently, Moment.js added moment#week to get/set the localized week of the year.
The week of the year varies depending on which day is the first day of the week (Sunday, Monday, etc), and which week is the first week of the year.
For example, in the United States, Sunday is the first day of the week. The week with January 1st in it is the first week of the year.
In France, Monday is the first day of the week, and the week with January 4th is the first week of the year.
The output of moment#week will depend on the locale for that moment.
When setting the week of the year, the day of the week is retained.
周 (ISO) 2.0.0+
编辑moment().isoWeek(Number);moment().isoWeek(); // Numbermoment().isoWeeks(Number);moment().isoWeeks(); // NumberGets or sets the ISO week of the year.
When setting the week of the year, the day of the week is retained.
月 1.0.0+
编辑moment().month(Number|String);moment().month(); // Numbermoment().months(Number|String);moment().months(); // NumberGets or sets the month.
Accepts numbers from 0 to 11. If the range is exceeded, it will bubble up to the year.
Note: Months are zero indexed, so January is month 0.
As of 2.1.0, a month name is also supported. This is parsed in the moment's current locale.
moment().month("January");moment().month("Feb");Before version 2.1.0, if a moment changed months and the new month did not have enough days to keep the current day of month, it would overflow to the next month.
As of version 2.1.0, this was changed to be clamped to the end of the target month.
// before 2.1.0moment([2012, 0, 31]).month(1).format("YYYY-MM-DD"); // 2012-03-02// after 2.1.0moment([2012, 0, 31]).month(1).format("YYYY-MM-DD"); // 2012-02-29季度 2.6.0+
编辑moment().quarter(); // Numbermoment().quarter(Number);Gets the quarter (1 to 4).
moment('2013-01-01T00:00:00.000').quarter() // 1moment('2013-04-01T00:00:00.000').subtract(1, 'ms').quarter() // 1moment('2013-04-01T00:00:00.000').quarter() // 2moment('2013-07-01T00:00:00.000').subtract(1, 'ms').quarter() // 2moment('2013-07-01T00:00:00.000').quarter() // 3moment('2013-10-01T00:00:00.000').subtract(1, 'ms').quarter() // 3moment('2013-10-01T00:00:00.000').quarter() // 4moment('2014-01-01T00:00:00.000').subtract(1, 'ms').quarter() // 4Sets the quarter (1 to 4).
moment('2013-01-01T00:00:00.000').quarter(2) // '2013-04-01T00:00:00.000'moment('2013-02-05T05:06:07.000').quarter(2).format() // '2013-05-05T05:06:07-07:00'年 1.0.0+
编辑moment().year(Number);moment().year(); // Numbermoment().years(Number);moment().years(); // NumberGets or sets the year.
Accepts numbers from -270,000 to 270,000.
周 (区域标准) 2.1.0+
编辑moment().weekYear(Number);moment().weekYear(); // NumberGets or sets the week-year according to the locale.
Because the first day of the first week does not always fall on the first day of the year, sometimes the week-year will differ from the month year.
For example, in the US, the week that contains Jan 1 is always the first week. In the US, weeks also start on Sunday. If Jan 1 was a Monday, Dec 31 would belong to the same week as Jan 1, and thus the same week-year as Jan 1. Dec 30 would have a different week-year than Dec 31.
周 (ISO) 2.1.0+
编辑moment().isoWeekYear(Number);moment().isoWeekYear(); // NumberGets or sets the ISO week-year.
周数 2.6.0+
编辑moment().weeksInYear();Gets the number of weeks according to locale in the current moment's year.
周数 (ISO) 2.6.0+
编辑moment().isoWeeksInYear();Gets the number of weeks in the current moment's year, according to ISO weeks.
取值 2.2.1+
编辑moment().get('year');moment().get('month'); // 0 to 11moment().get('date');moment().get('hour');moment().get('minute');moment().get('second');moment().get('millisecond');String getter. In general
moment().get(unit) === moment()[unit]()Units are case insensitive, and support plural and short forms: year (years, y), month (months, M), date (dates, D), hour (hours, h), minute (minutes, m), second (seconds, s), millisecond (milliseconds, ms).
赋值 2.2.1+
编辑moment().set(String, Int);moment().set(Object(String, Int));Generic setter, accepting unit as first argument, and value as second:
moment().set('year', 2013);moment().set('month', 3); // Aprilmoment().set('date', 1);moment().set('hour', 13);moment().set('minute', 20);moment().set('second', 30);moment().set('millisecond', 123);moment().set({'year': 2013, 'month': 3});Units are case insensitive, and support plural and short forms: year (years, y), month (months, M), date (dates, D), hour (hours, h), minute (minutes, m), second (seconds, s), millisecond (milliseconds, ms).
Object parsing was added in 2.9.0
最大值 2.7.0+
编辑moment.max(Moment[,Moment...]);Returns the maximum (most distant future) of the given moment instances.
For example:
var a = moment().subtract(1, 'day');var b = moment().add(1, 'day');moment.max(a, b); // bWith no arguments the function returns a moment instance with the current time.
From version 2.10.5, if an invalid moment is one of the arguments, the result is an invalid moment.
moment.max(moment(), moment.invalid()).isValid() === falsemoment.max(moment.invalid(), moment()).isValid() === false最小值 2.7.0+
编辑moment.min(Moment[,Moment...]);Returns the minimum (most distant past) of the given moment instances.
For example:
var a = moment().subtract(1, 'day');var b = moment().add(1, 'day');moment.min(a, b); // aWith no arguments the function returns a moment instance with the current time.
From version 2.10.5, if an invalid moment is one of the arguments, the result is an invalid moment.
moment.min(moment(), moment.invalid()).isValid() === falsemoment.min(moment.invalid(), moment()).isValid() === false操作
Once you have a Moment, you may want to manipulate it in some way. There are a number of methods to help with this.
Moment.js uses the fluent interface pattern, also known as method chaining. This allows you to do crazy things like the following.
moment().add(7, 'days').subtract(1, 'months').year(2009).hours(0).minutes(0).seconds(0);Note: It should be noted that moments are mutable. Calling any of the manipulation methods will change the original moment.
If you want to create a copy and manipulate it, you should use moment#clone before manipulating the moment. More info on cloning.
加法 1.0.0+
编辑moment().add(Number, String);moment().add(Duration);moment().add(Object);Mutates the original moment by adding time.
This is a pretty robust function for adding time to an existing moment. To add time, pass the key of what time you want to add, and the amount you want to add.
moment().add(7, 'days');There are some shorthand keys as well if you're into that whole brevity thing.
moment().add(7, 'd');If you want to add multiple different keys at the same time, you can pass them in as an object literal.
moment().add(7, 'days').add(1, 'months'); // with chainingmoment().add({days:7,months:1}); // with object literalThere are no upper limits for the amounts, so you can overload any of the parameters.
moment().add(1000000, 'milliseconds'); // a million millisecondsmoment().add(360, 'days'); // 360 daysSpecial considerations for months and years
If the day of the month on the original date is greater than the number of days in the final month, the day of the month will change to the last day in the final month.
moment([2010, 0, 31]); // January 31moment([2010, 0, 31]).add(1, 'months'); // February 28There are also special considerations to keep in mind when adding time that crosses over daylight saving time. If you are adding years, months, weeks, or days, the original hour will always match the added hour.
var m = moment(new Date(2011, 2, 12, 5, 0, 0)); // the day before DST in the USm.hours(); // 5m.add(1, 'days').hours(); // 5If you are adding hours, minutes, seconds, or milliseconds, the assumption is that you want precision to the hour, and will result in a different hour.
var m = moment(new Date(2011, 2, 12, 5, 0, 0)); // the day before DST in the USm.hours(); // 5m.add(24, 'hours').hours(); // 6Alternatively, you can use durations to add to moments.
var duration = moment.duration({'days' : 1});moment([2012, 0, 31]).add(duration); // February 1Before version 2.8.0, the moment#add(String, Number) syntax was also supported. It has been deprecated in favor of moment#add(Number, String).
moment().add('seconds', 1); // Deprecated in 2.8.0moment().add(1, 'seconds');减法 1.0.0+
编辑moment().subtract(Number, String);moment().subtract(Duration);moment().subtract(Object);Mutates the original moment by subtracting time.
This is exactly the same as moment#add, only instead of adding time, it subtracts time.
moment().subtract(7, 'days');Before version 2.8.0, the moment#subtract(String, Number) syntax was also supported. It has been deprecated in favor of moment#subtract(Number, String).
moment().subtract('seconds', 1); // Deprecated in 2.8.0moment().subtract(1, 'seconds');开始时间 1.7.0+
编辑moment().startOf(String);Mutates the original moment by setting it to the start of a unit of time.
moment().startOf('year'); // set to January 1st, 12:00 am this yearmoment().startOf('month'); // set to the first of this month, 12:00 ammoment().startOf('quarter'); // set to the beginning of the current quarter, 1st day of months, 12:00 ammoment().startOf('week'); // set to the first day of this week, 12:00 ammoment().startOf('isoWeek'); // set to the first day of this week according to ISO 8601, 12:00 ammoment().startOf('day'); // set to 12:00 am todaymoment().startOf('hour'); // set to now, but with 0 mins, 0 secs, and 0 msmoment().startOf('minute'); // set to now, but with 0 seconds and 0 millisecondsmoment().startOf('second'); // same as moment().milliseconds(0);These shortcuts are essentially the same as the following.
moment().startOf('year');moment().month(0).date(1).hours(0).minutes(0).seconds(0).milliseconds(0);moment().startOf('hour');moment().minutes(0).seconds(0).milliseconds(0)As of version 2.0.0, moment#startOf('day') replaced moment#sod.
Note: moment#startOf('week') was added in version 2.0.0.
As of version 2.1.0, moment#startOf('week') uses the locale aware week start day.
Note: moment#startOf('isoWeek') was added in version 2.2.0.
结束时间 1.7.0+
编辑moment().endOf(String);Mutates the original moment by setting it to the end of a unit of time.
This is the same as moment#startOf, only instead of setting to the start of a unit of time, it sets to the end of a unit of time.
moment().endOf("year"); // set the moment to 12-31 11:59:59.999 pm this yearAs of version 2.0.0, moment#endOf('day') replaced moment#eod.
Note: moment#endOf('week') was added in version 2.0.0.
As of version 2.1.0, moment#endOf('week') uses the locale aware week start day.
最大值 From 2.1.0, Deprecated 2.7.0
编辑moment().max(Moment|String|Number|Date|Array);NOTE: This function has been deprecated in 2.7.0. Consider moment.min instead.
Limits the moment to a maximum of another moment value. So a.max(b) is the same as a = moment.min(a, b) (note that max is converted to min).
Sometimes, server clocks are not quite in sync with client clocks. This ends up displaying humanized strings such as "in a few seconds" rather than "a few seconds ago". You can prevent that withmoment#max():
This is the counterpart for moment#min.
var momentFromServer = moment(input);var clampedMoment = momentFromServer.max();You can pass anything to moment#max that you would pass to moment().
moment().max(moment().add(1, 'd'));moment().max("2013-04-20T20:00:00+0800");moment().max("Jan 1 2001", "MMM D YYYY");moment().max(new Date(2012, 1, 8));最小值 From 2.1.0, Deprecated 2.7.0
编辑moment().min(Moment|String|Number|Date|Array);NOTE: This function has been deprecated in 2.7.0. Consider moment.max instead.
Limits the moment to a minimum of another moment value. So a.min(b) is the same as a = moment.max(a, b) (note that min is converted to max).
This is the counterpart for moment#max.
moment().min("2013-04-20T20:00:00+0800");This can be used in conjunction with moment#max to clamp a moment to a range.
var start = moment().startOf('week');var end = moment().endOf('week');var actual = moment().min(start).max(end);本地化 1.5.0+
编辑moment().local();Sets a flag on the original moment to internally use Date#get* and Date#set* instead ofDate#getUTC* and Date#setUTC*.
var a = moment.utc([2011, 0, 1, 8]);a.hours(); // 8 UTCa.local();a.hours(); // 0 PSTSee moment.utc() for more information on UTC mode.
UTC 1.5.0+
编辑moment().utc();Sets a flag on the original moment to internally use Date#getUTC* and Date#setUTC* instead ofDate#get* and Date#set*.
var a = moment([2011, 0, 1, 8]);a.hours(); // 8 PSTa.utc();a.hours(); // 16 UTCSee moment.utc() for more information on UTC mode.
UTC 偏移量 2.9.0++
编辑moment().utcOffset();moment().utcOffset(Number|String);Get the utc offset in minutes.
NOTE: Unlike moment.fn.zone this function returns the real offset from UTC, not the reverse offset (as returned by Date.prototype.getTimezoneOffset).
Getting the utcOffset of the current object:
moment().utcOffset(); // (-240, -120, -60, 0, 60, 120, 240, etc.)Setting the utc offset by supplying minutes. Note that once you set an offset, it's fixed and won't change on its own (i.e there are no DST rules). If you want an actual timezone -- time in a particular location, likeAmerica/Los_Angeles, consider moment-timezone.
moment().utcOffset(120);If the input is less than 16 and greater than -16, it will interpret your input as hours instead.
// these are equivalentmoment().utcOffset(8); // set hours offsetmoment().utcOffset(480); // set minutes offset (8 * 60)It is also possible to set the utc offset from a string.
// these are equivalentmoment().utcOffset("+08:00");moment().utcOffset(8);moment().utcOffset(480);moment#utcOffset will search the string for the first match of +00:00 +0000 -00:00 -0000, so you can even pass an ISO8601 formatted string and the moment will be changed to that utc offset.
Note that the string is required to start with the + or - character. Passing a string that does not start with + or - will be interpreted as if it were "+00:00".
moment().utcOffset("2013-03-07T07:00:00+08:00");时区偏移量 From 1.2.0, deprecated 2.9.0+
编辑moment().zone();moment().zone(Number|String);NOTE: This function has been deprecated in 2.9.0. Consider moment.fn.utcOffset instead.
Get the timezone offset in minutes.
moment().zone(); // (60, 120, 240, etc.)As of version 2.1.0, it is possible to set the offset by passing in the number of minutes offset from GMT.
moment().zone(120);If the input is less than 16 and greater than -16, it will interpret your input as hours instead.
// these are equivalentmoment().zone(480);moment().zone(8);It is also possible to set the zone from a string.
moment().zone("-08:00");moment#zone will search the string for the first match of +00:00 +0000 -00:00 -0000, so you can even pass an ISO8601 formatted string and the moment will be changed to that zone.
moment().zone("2013-03-07T07:00:00-08:00");显示
Once parsing and manipulation are done, you need some way to display the moment.
格式化 1.0.0+
编辑moment().format();moment().format(String);This is the most robust display option. It takes a string of tokens and replaces them with their corresponding values.
moment().format(); // "2014-09-08T08:02:17-05:00" (ISO 8601)moment().format("dddd, MMMM Do YYYY, h:mm:ss a"); // "Sunday, February 14th 2010, 3:25:50 pm"moment().format("ddd, hA"); // "Sun, 3PM"moment('gibberish').format('YYYY MM DD'); // "Invalid date"Note: as of 1.6.0, the z/zz format tokens have been deprecated. Read more about it here. Z-07:00 -06:00 ... +06:00 +07:00 ZZ-0700 -0600 ... +0600 +0700Unix TimestampX1360013296Unix Millisecond Timestampx1360013296123
Z ZZ were added in 1.2.0.
S SS SSS were added in 1.6.0.
X was added in 2.0.0.
e E gg gggg GG GGGG were added in 2.1.0.
x was added in 2.8.4.
SSSS to SSSSSSSSS were added in 2.10.5. They display 3 significant digits and the rest is filled with zeros.
Localized formats
Because preferred formatting differs based on locale, there are a few tokens that can be used to format a moment based on its locale.
There are upper and lower case variations on the same formats. The lowercase version is intended to be the shortened version of its uppercase counterpart.
TimeLT8:30 PMTime with secondsLTS8:30:25 PMMonth numeral, day of month, yearL09/04/1986 l9/4/1986Month name, day of month, yearLLSeptember 4 1986 llSep 4 1986Month name, day of month, year, timeLLLSeptember 4 1986 8:30 PM lllSep 4 1986 8:30 PMMonth name, day of month, day of week, year, timeLLLLThursday, September 4 1986 8:30 PM llllThu, Sep 4 1986 8:30 PML LL LLL LLLL LT are available in version 1.3.0. l ll lll llll are available in 2.0.0. LTS was added in 2.8.4.
Escaping characters
To escape characters in format strings, you can wrap the characters in square brackets.
moment().format('[today] dddd'); // 'today Sunday'Similarities and differences with LDML
Note: While these date formats are very similar to LDML date formats, there are a few minor differences regarding day of month, day of year, and day of week.
For a breakdown of a few different date formatting tokens across different locales, see this chart of date formatting tokens.
Formatting speed
To compare Moment.js formatting speed against other libraries, check out this comparison against other libraries.
Other tokens
If you are more comfortable working with strftime instead of LDML-like parsing tokens, you can use Ben Oakes' plugin. benjaminoakes/moment-strftime.
Default format
As of version 1.5.0, calling moment#format without a format will default to moment.defaultFormat. Out of the box, moment.defaultFormat is the ISO8601 format YYYY-MM-DDTHH:mm:ssZ.
时差 (之前，现在为基准) 1.0.0+
编辑moment().fromNow();moment().fromNow(Boolean);A common way of displaying time is handled by moment#fromNow. This is sometimes called timeago or relative time.
moment([2007, 0, 29]).fromNow(); // 4 years agoIf you pass true, you can get the value without the suffix.
moment([2007, 0, 29]).fromNow(); // 4 years agomoment([2007, 0, 29]).fromNow(true); // 4 yearsThe base strings are customized by the current locale.
The breakdown of which string is displayed for each length of time is outlined in the table below.
From version 2.10.3, if the target moment object is invalid the result is the localized Invalid date string.
时差 (之前) 1.0.0+
编辑moment().from(Moment|String|Number|Date|Array);moment().from(Moment|String|Number|Date|Array, Boolean);You may want to display a moment in relation to a time other than now. In that case, you can usemoment#from.
var a = moment([2007, 0, 28]);var b = moment([2007, 0, 29]);a.from(b) // "a day ago"The first parameter is anything you can pass to moment() or an actual Moment.
var a = moment([2007, 0, 28]);var b = moment([2007, 0, 29]);a.from(b); // "a day ago"a.from([2007, 0, 29]); // "a day ago"a.from(new Date(2007, 0, 29)); // "a day ago"a.from("2007-01-29"); // "a day ago"Like moment#fromNow, passing true as the second parameter returns value without the suffix. This is useful wherever you need to have a human readable length of time.
var start = moment([2007, 0, 5]);var end = moment([2007, 0, 10]);end.from(start); // "in 5 days"end.from(start, true); // "5 days"From version 2.10.3, if any of the endpoints are invalid the result is the localized Invalid date string.
时差 (之后，现在为基准) 2.10.3+
编辑moment().toNow();moment().toNow(Boolean);A common way of displaying time is handled by moment#toNow. This is sometimes called timeago or relative time.
This is similar to moment.fromNow, but gives the opposite interval: a.fromNow() = - a.toNow().
This is similar to moment.to, but is special-cased for the current time. Use moment.to, if you want to control the two end points of the interval.
moment([2007, 0, 29]).toNow(); // in 4 yearsIf you pass true, you can get the value without the prefix.
moment([2007, 0, 29]).toNow(); // in 4 yearsmoment([2007, 0, 29]).toNow(true); // 4 yearsThe base strings are customized by the current locale.
The breakdown of which string is displayed for each length of time is outlined in the table below.
From version 2.10.3, if the target moment object is invalid the result is the localized Invalid date string.
时差 (之后) 2.10.3+
编辑moment().to(Moment|String|Number|Date|Array);moment().to(Moment|String|Number|Date|Array, Boolean);You may want to display a moment in relation to a time other than now. In that case, you can usemoment#to.
var a = moment([2007, 0, 28]);var b = moment([2007, 0, 29]);a.to(b) // "in a day"The first parameter is anything you can pass to moment() or an actual Moment.
var a = moment([2007, 0, 28]);var b = moment([2007, 0, 29]);a.to(b); // "in a day"a.to([2007, 0, 29]); // "in a day"a.to(new Date(2007, 0, 29)); // "in a day"a.to("2007-01-29"); // "in a day"Like moment#toNow, passing true as the second parameter returns value without the suffix. This is useful wherever you need to have a human readable length of time.
var start = moment([2007, 0, 5]);var end = moment([2007, 0, 10]);end.to(start); // "5 days ago"end.to(start, true); // "5 days"From version 2.10.3, if any of the endpoints are invalid the result is the localized Invalid date string.
日历时间 1.3.0+
编辑moment().calendar();moment().calendar(referenceTime);moment().calendar(referenceTime, formats); // from 2.10.5Calendar time displays time relative to a given referenceTime (defaults to now), but does so slightly differently than moment#fromNow.
moment#calendar will format a date with different strings depending on how close to referenceTime's date (today by default) the date is.
These strings are localized, and can be customized.
From 2.10.5 moment supports specifying calendar output formats per invocation:
moment().calendar(null, { sameDay: '[Today]', nextDay: '[Tomorrow]', nextWeek: 'dddd', lastDay: '[Yesterday]', lastWeek: '[Last] dddd', sameElse: 'DD/MM/YYYY'});sameElse is used as the format when the moment is more than a week away from the referenceTime
时差 (毫秒) 1.0.0+
编辑moment().diff(Moment|String|Number|Date|Array);moment().diff(Moment|String|Number|Date|Array, String);moment().diff(Moment|String|Number|Date|Array, String, Boolean);To get the difference in milliseconds, use moment#diff like you would use moment#from.
var a = moment([2007, 0, 29]);var b = moment([2007, 0, 28]);a.diff(b) // 86400000To get the difference in another unit of measurement, pass that measurement as the second argument.
var a = moment([2007, 0, 29]);var b = moment([2007, 0, 28]);a.diff(b, 'days') // 1The supported measurements are years, months, weeks, days, hours, minutes, and seconds. For ease of development, the singular forms are supported as of 2.0.0. Units of measurement other than milliseconds are available in version 1.1.1.
By default, moment#diff will return number rounded down. If you want the floating point number, passtrue as the third argument. Before 2.0.0, moment#diff returned rounded number, not a rounded downnumber.
var a = moment([2008, 6]);var b = moment([2007, 0]);a.diff(b, 'years'); // 1a.diff(b, 'years', true); // 1.5If the moment is earlier than the moment you are passing to moment.fn.diff, the return value will be negative.
var a = moment();var b = moment().add(1, 'seconds');a.diff(b) // -1000b.diff(a) // 1000A easy way to think of this is by replacing .diff( with a minus operator.
// a < ba.diff(b) // a - b < 0b.diff(a) // b - a > 0Month and year diffs
moment#diff has some special handling for month and year diffs. It is optimized to ensure that two months with the same date are always a whole number apart.
So Jan 15 to Feb 15 should be exactly 1 month.
Feb 28 to Mar 28 should be exactly 1 month.
Feb 28 2011 to Feb 28 2012 should be exactly 1 year.
See more discussion on the month and year diffs here
This change to month and year diffs was made in 2.0.0. As of version 2.9.0 diff also support quarter unit.
Unix 偏移量 (毫秒) 1.0.0+
编辑moment().valueOf();+moment();moment#valueOf simply outputs the number of milliseconds since the Unix Epoch, just likeDate#valueOf.
moment(1318874398806).valueOf(); // 1318874398806+moment(1318874398806); // 1318874398806To get a Unix timestamp (the number of seconds since the epoch) from a Moment, use moment#unix.
Unix 时间戳 (秒) 1.6.0+
编辑moment().unix();moment#unix outputs a Unix timestamp (the number of seconds since the Unix Epoch).
moment(1318874398806).unix(); // 1318874398This value is floored to the nearest second, and does not include a milliseconds component.
天数 (月) 1.5.0+
编辑moment().daysInMonth();Get the number of days in the current month.
moment("2012-02", "YYYY-MM").daysInMonth() // 29moment("2012-01", "YYYY-MM").daysInMonth() // 31Date 对象 1.0.0+
编辑moment().toDate();To get the native Date object that Moment.js wraps, use moment#toDate.
This will return the Date that the moment uses, so any changes to that Date will cause the moment to change. If you want a Date that is a copy, use moment#clone before you use moment#toDate.
moment#native has been replaced by moment#toDate and has been deprecated as of 1.6.0.
数组 1.7.0+
编辑moment().toArray();This returns an array that mirrors the parameters from new Date().
moment().toArray(); // [2013, 1, 4, 14, 40, 16, 154];JSON 2.0.0+
编辑moment().toJSON();When serializing an object to JSON, if there is a Moment object, it will be represented as an ISO8601 string, adjusted to UTC.
JSON.stringify({ postDate : moment()}); // '{"postDate":"2013-02-04T22:44:30.652Z"}'If instead you would like an ISO8601 string that reflects the moment's utcOffset(), then you can modify the toJSON function like this:
moment.fn.toJSON = function() { return this.format(); }This changes the behavior as follows:
JSON.stringify({ postDate : moment()}); // '{"postDate":"2013-02-04T14:44:30-08:00"}'ISO 8601 字符串 2.1.0+
编辑moment().toISOString();Formats a string to the ISO8601 standard.
moment().toISOString() // 2013-02-04T22:44:30.652ZFrom version 2.8.4 the native Date.prototype.toISOString is used if available, for performance reasons.
对象 2.10.5+
编辑moment().toObject();This returns an object containing year, month, day-of-month, hour, minute, seconds, milliseconds.
moment().toObject() // { // years: 2015 // months: 6 // date: 26, // hours: 1, // minutes: 53, // seconds: 14, // milliseconds: 600 // }查询
是否之前 2.0.0+
编辑moment().isBefore(Moment|String|Number|Date|Array);moment().isBefore(Moment|String|Number|Date|Array, String);Check if a moment is before another moment.
moment('2010-10-20').isBefore('2010-10-21'); // trueIf you want to limit the granularity to a unit other than milliseconds, pass the units as the second parameter.
As the second parameter determines the precision, and not just a single value to check, using day will check for year, month and day.
moment('2010-10-20').isBefore('2010-12-31', 'year'); // falsemoment('2010-10-20').isBefore('2011-01-01', 'year'); // trueLike moment#isAfter and moment#isSame, any of the units of time that are supported formoment#startOf are supported for moment#isBefore.
year month week day hour minute secondIf nothing is passed to moment#isBefore, it will default to the current time.
NOTE: moment().isBefore() has undefined behavior and should not be used! If the code runs fast the initial created moment would be the same as the one created in isBefore to perform the check, so the result would be false. But if the code runs slower it's possible that the moment created in isBefore is measurably after the one created in moment(), so the call would return true.
是否相同 2.0.0+
编辑moment().isSame(Moment|String|Number|Date|Array);moment().isSame(Moment|String|Number|Date|Array, String);Check if a moment is the same as another moment.
moment('2010-10-20').isSame('2010-10-20'); // trueIf you want to limit the granularity to a unit other than milliseconds, pass it as the second parameter.
moment('2010-10-20').isSame('2009-12-31', 'year'); // falsemoment('2010-10-20').isSame('2010-01-01', 'year'); // truemoment('2010-10-20').isSame('2010-12-31', 'year'); // truemoment('2010-10-20').isSame('2011-01-01', 'year'); // falseWhen including a second parameter, it will match all units equal or larger. Passing in month will checkmonth and year. Passing in day will check day, month, and year.
moment('2010-01-01').isSame('2011-01-01', 'month'); // false, different yearmoment('2010-01-01').isSame('2010-02-01', 'day'); // false, different monthLike moment#isAfter and moment#isBefore, any of the units of time that are supported formoment#startOf are supported for moment#isSame.
year month week day hour minute second是否之后 2.0.0+
编辑moment().isAfter(Moment|String|Number|Date|Array);moment().isAfter(Moment|String|Number|Date|Array, String);Check if a moment is after another moment.
moment('2010-10-20').isAfter('2010-10-19'); // trueIf you want to limit the granularity to a unit other than milliseconds, pass the units as the second parameter.
As the second parameter determines the precision, and not just a single value to check, using day will check for year, month and day.
moment('2010-10-20').isAfter('2010-01-01', 'year'); // falsemoment('2010-10-20').isAfter('2009-12-31', 'year'); // trueLike moment#isSame and moment#isBefore, any of the units of time that are supported formoment#startOf are supported for moment#isAfter.
year month week day hour minute secondIf nothing is passed to moment#isAfter, it will default to the current time.
moment().isAfter(); // false是否之间 2.9.0+
编辑moment().isBetween(moment-like, moment-like);moment().isBetween(moment-like, moment-like, String);// where moment-like is Moment|String|Number|Date|ArrayCheck if a moment is between two other moments, optionally looking at unit scale (minutes, hours, days, etc). The match is exclusive.
moment('2010-10-20').isBetween('2010-10-19', '2010-10-25'); // trueIf you want to limit the granularity to a unit other than milliseconds, pass the units as the second parameter.
moment('2010-10-20').isBetween('2010-01-01', '2012-01-01', 'year'); // falsemoment('2010-10-20').isBetween('2009-12-31', '2012-01-01', 'year'); // trueLike moment#isSame, moment#isBefore, moment#isAfter any of the units of time that are supported for moment#startOf are supported for moment#isBetween. Year, month, week, day, hour, minute, and second.
是否闰年 1.0.0+
编辑moment().isLeapYear();moment#isLeapYear returns true if that year is a leap year, and false if it is not.
moment([2000]).isLeapYear() // truemoment([2001]).isLeapYear() // falsemoment([2100]).isLeapYear() // false是否夏令时 1.2.0+
编辑moment().isDST();moment#isDST checks if the current moment is in daylight saving time.
moment([2011, 2, 12]).isDST(); // false, March 12 2011 is not DSTmoment([2011, 2, 14]).isDST(); // true, March 14 2011 is DST是否被夏令时转换 2.3.0+
编辑moment('2013-03-10 2:30', 'YYYY-MM-DD HH:mm').isDSTShifted()Another important piece of validation is to know if the date has been moved by a DST. For example, in most of the United States:
moment('2013-03-10 2:30', 'YYYY-MM-DD HH:mm').format(); //=> '2013-03-10T01:30:00-05:00'This is because daylight saving time shifts the time from 2:00 to 3:00, so 2:30 isn't a real time. The resulting time is browser-dependent, either adjusting the time forward or backwards. Usemoment#isDSTShifted to test for this condition.
Note: before 2.3.0, Moment objects in this condition always returned false for moment#isValid; they now return true.
是否 Moment 对象 1.5.0+
编辑moment.isMoment(obj);To check if a variable is a moment object, use moment.isMoment().
moment.isMoment() // falsemoment.isMoment(new Date()) // falsemoment.isMoment(moment()) // true是否 Date 对象 2.9.0+
编辑moment.isDate(obj);To check if a variable is a native js Date object, use moment.isDate().
moment.isDate(); // falsemoment.isDate(new Date()); // truemoment.isDate(moment()); // false国际化
Moment.js has robust support for internationalization.
You can load multiple locales and easily switch between them.
In addition to assigning a global locale, you can assign a locale to a specific moment.
设置语言 (全局) 1.0.0+
编辑// From 2.8.1 onwardmoment.locale(String);moment.locale(String[]);moment.locale(String, Object);// Deprecated in 2.8.1moment.lang(String);moment.lang(String[]);moment.lang(String, Object);By default, Moment.js comes with English locale strings. If you need other locales, you can load them into Moment.js for later use.
To load a locale, pass the key and the string values to moment.locale.
More details on each of the parts of the locale bundle can be found in the customization section.
moment.locale('fr', { months : "janvier_février_mars_avril_mai_juin_juillet_août_septembre_octobre_novembre_décembre".split("_"), monthsShort : "janv._févr._mars_avr._mai_juin_juil._août_sept._oct._nov._déc.".split("_"), weekdays : "dimanche_lundi_mardi_mercredi_jeudi_vendredi_samedi".split("_"), weekdaysShort : "dim._lun._mar._mer._jeu._ven._sam.".split("_"), weekdaysMin : "Di_Lu_Ma_Me_Je_Ve_Sa".split("_"), longDateFormat : { LT : "HH:mm", LTS : "HH:mm:ss", L : "DD/MM/YYYY", LL : "D MMMM YYYY", LLL : "D MMMM YYYY LT", LLLL : "dddd D MMMM YYYY LT" }, calendar : { sameDay: "[Aujourd'hui à] LT", nextDay: '[Demain à] LT', nextWeek: 'dddd [à] LT', lastDay: '[Hier à] LT', lastWeek: 'dddd [dernier à] LT', sameElse: 'L' }, relativeTime : { future : "dans %s", past : "il y a %s", s : "quelques secondes", m : "une minute", mm : "%d minutes", h : "une heure", hh : "%d heures", d : "un jour", dd : "%d jours", M : "un mois", MM : "%d mois", y : "une année", yy : "%d années" }, ordinalParse : /\d{1,2}(er|ème)/, ordinal : function (number) { return number + (number === 1 ? 'er' : 'ème'); }, meridiemParse: /PD|MD/, isPM: function (input) { return input.charAt(0) === 'M'; }, // in case the meridiem units are not separated around 12, then implement // this function (look at locale/id.js for an example) // meridiemHour : function (hour, meridiem) { // return /* 0-23 hour, given meridiem token and hour 1-12 */ // }, meridiem : function (hours, minutes, isLower) { return hours < 12 ? 'PD' : 'MD'; }, week : { dow : 1, // Monday is the first day of the week. doy : 4 // The week that contains Jan 4th is the first week of the year. }});Once you load a locale, it becomes the active locale. To change active locales, simply callmoment.locale with the key of a loaded locale.
moment.locale('fr');moment(1316116057189).fromNow() // il y a une heuremoment.locale('en');moment(1316116057189).fromNow() // an hour agoAs of 2.8.0, changing the global locale doesn't affect existing instances.
moment.locale('fr');var m = moment(1316116057189);m.fromNow(); // il y a une heuremoment.locale('en');m.fromNow(); // il y a une heuremoment(1316116057189).fromNow(); // an hour agomoment.locale returns the locale used. This is useful because Moment won't change locales if it doesn't know the one you specify.
moment.locale('fr'); // 'fr'moment.locale('tq'); // 'fr'You may also specify a list of locales, and Moment will use the first one it has localizations for.
moment.locale(['tq', 'fr']); // 'fr'Moment will also try locale specifier substrings from most-specific to least-specific until it finds a locale it knows. This is useful when supplying Moment with a locale string pulled from the user's environment, such as window.navigator.language.
moment.locale('en-NZ'); // 'en'Finally, Moment will search intelligently through an array of locales and their substrings.
moment.locale('en-NZ', 'en-AU'); // 'en-au', not 'en'设置语言 (局部) 1.7.0+
编辑// From version 2.8.1 onwardmoment().locale(String);// Deprecated version 2.8.1moment().lang(String);A global locale configuration can be problematic when passing around moments that may need to be formatted into different locale.
In 1.7.0 we added instance specific locale configurations.
moment.locale('en'); // default the locale to Englishvar localLocale = moment();localLocale.locale('fr'); // set this instance to use FrenchlocalLocale.format('LLLL'); // dimanche 15 juillet 2012 11:01moment().format('LLLL'); // Sunday, July 15 2012 11:01 AMmoment.locale('es'); // change the global locale to SpanishlocalLocale.format('LLLL'); // dimanche 15 juillet 2012 11:01moment().format('LLLL'); // Domingo 15 Julio 2012 11:01localLocale.locale(false); // reset the instance localelocalLocale.format('LLLL'); // Domingo 15 Julio 2012 11:01moment().format('LLLL'); // Domingo 15 Julio 2012 11:01If you call moment#locale with no parameters, you get back the locale configuration that would be used for that moment.
var fr = moment().locale('fr');fr.localeData().months(moment([2012, 0])) // "janvier"fr.locale('en');fr.localeData().months(moment([2012, 0])) // "January"If you need to access the locale data for a moment, this is the preferred way to do so.
As of 2.3.0, you can also specify an array of locale identifiers. It works the same was it does in the global locale configuration.
加载语言 (NodeJS) 1.0.0+
编辑moment.locale(String);Loading locales in NodeJS is super easy. If there is a locale file in moment-root/locale/ named after that key, the first call to moment.locale will load it.
var moment = require('moment');moment.locale('fr');moment(1316116057189).fromNow(); // il y a une heureIf you want your locale supported, create a pull request to the develop branch with the required locale and unit test files.
加载语言 (浏览器) 1.0.0+
编辑// From 2.8.1 onwardmoment.locale(String, Object);// Deprecated in 2.8.1moment.lang(String, Object);Loading locales in the browser just requires you to include the locale files.
<script src="moment.js"></script><script src="locale/fr.js"></script><script src="locale/pt.js"></script><script> moment.locale('fr'); // Set the default/global locale // ...</script>There are minified versions of all locales together:
<script src="moment.js"></script><script src="min/locales.js"></script>To minimize http requests, use our Grunt task to compile Moment with a custom list of locales:
grunt transpile:fr,it<script src="min/moment-with-locales.custom.js"></script>Note: Locale files are defined in UMD style, so they should work seamlessly in all environments.
新增语言
编辑To add your locale to Moment.js, submit a pull request with both a locale file and a test file. You can find examples in moment/locale/fr.js and moment/test/locale/fr.js.
To run the tests in Node.js, do npm install, then grunt.
If all the tests pass, submit a pull request, and thank you for contributing!
获取当前语言 1.6.0+
编辑// From version 2.8.1 onwardmoment.locale();// Deprecated in version 2.8.1moment.lang();If you are changing locales frequently, you may want to know what locale is currently being used. This is as simple as calling moment.locale without any parameters.
moment.locale('en'); // set to englishmoment.locale(); // returns 'en'moment.locale('fr'); // set to frenchmoment.locale(); // returns 'fr'列出月份和星期 2.3.0+
编辑moment.months()moment.monthsShort()moment.weekdays()moment.weekdaysShort()moment.weekdaysMin()It is sometimes useful to get the list of months or weekdays in a locale, for example when populating a dropdown menu.
moment.months();Returns the list of months in the current locale.
[ 'January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December' ]Similarly, moment.monthsShort returns abbreviated month names, and moment.weekdays,moment.weekdaysShort, moment.weekdaysMin return lists of weekdays.
You can pass an integer into each of those functions to get a specific month or weekday.
moment.weekdays(3); // 'Wednesday'Note: Currently, weekdays always have Sunday as index 0, regardless of the local first day of the week.
Some locales make special considerations into account when formatting month names. For example, Dutch formats month abbreviations without a trailing period, but only if it's formatting the month between dashes. The months method supports passing a format in so that the months will be listed in the proper context.
moment.locale('nl');moment.monthsShort(); // ['jan.', 'feb.', 'mrt.', ...]moment.monthsShort('-MMM-'); // [ 'jan', 'feb', 'mrt', ...]And finally, you can combine both the format option and the integer option.
moment.monthsShort('-MMM-', 3); // 'apr'获取语言数据 2.8.0+
编辑localeData = moment.localeData()localeData.months()localeData.monthsShort()localeData.monthsParse()localeData.weekdays()localeData.weekdaysShort()localeData.weekdaysMin()localeData.weekdaysParse()localeData.longDateFormat()localeData.isPM()localeData.meridiem()localeData.calendar()localeData.relativeTime()localeData.pastFuture()localeData.ordinal()localeData.preparse()localeData.postformat()localeData.weeks()localeData.invalidDate()localeData.firstDayOfWeek()localeData.firstDayOfYear()You can access the properties of the currently loaded locale through the moment.localeData(key)function. It returns the current locale or a locale with the given key:
// get current localevar currentLocaleData = moment.localeData();var frLocaleData = moment.localeData('fr');The returned object has the following methods:
localeData.months(aMoment); // full month name of aMomentlocaleData.monthsShort(aMoment); // short month name of aMomentlocaleData.monthsParse(longOrShortMonthString); // returns month id (0 to 11) of inputlocaleData.weekdays(aMoment); // full weekday name of aMomentlocaleData.weekdaysShort(aMoment); // short weekday name of aMomentlocaleData.weekdaysMin(aMoment); // min weekday name of aMomentlocaleData.weekdaysParse(minShortOrLongWeekdayString); // returns weekday id (0 to 6) of inputlocaleData.longDateFormat(dateFormat); // returns the full format of abbreviated date-time formats LT, L, LL and so onlocaleData.isPM(amPmString); // returns true iff amPmString represents PMlocaleData.meridiem(hours, minutes, isLower); // returns am/pm string for particular time-of-day in upper/lower caselocaleData.calendar(key, aMoment); // returns a format that would be used for calendar representation. Key is one of 'sameDay', 'nextDay', 'lastDay', 'nextWeek', 'prevWeek', 'sameElse'localeData.relativeTime(number, withoutSuffix, key, isFuture); // returns relative time string, key is on of 's', 'm', 'mm', 'h', 'hh', 'd', 'dd', 'M', 'MM', 'y', 'yy'. Single letter when number is 1.localeData.pastFuture(diff, relTime); // convert relTime string to past or future string depending on difflocaleData.ordinal(number); // convert number to ordinal string 1 -> 1stlocaleData.preparse(str); // called before parsing on every input stringlocaleData.postformat(str); // called after formatting on every stringlocaleData.week(aMoment); // returns week-of-year of aMomentlocaleData.invalidDate(); // returns a translation of 'Invalid date'localeData.firstDayOfWeek(); // 0-6 (Sunday to Saturday)localeData.firstDayOfYear(); // 0-15 this and the first day of week are used // to determine which is the first week of the // year. dow == 1 and doy == 4 means week starts // Monday and first week that has Thursday is the // first week of the year (but doy is NOT simply // Thursday).自定义
Moment.js is very easy to customize. In general, you should create a locale setting with your customizations.
moment.locale('en-my-settings', { // customizations.});However, you can also overwrite an existing locale that has been loaded as well.
moment.locale('en', { // customizations});Any settings that are not defined are inherited from the default english settings.
You can remove a previously defined locale by passing null as the second argument. The deleted locale will no longer be available for use.
moment.locale('fr'); // 'fr'moment.locale('en'); // 'en'moment.locale('fr', null);moment.locale('fr'); // 'en'月份名 1.0.0+
编辑// From 2.8.1 onwardmoment.locale('en', { months : String[]});moment.locale('en', { months : Function});// Deprecated in 2.8.1moment.lang('en', { months : String[]});moment.lang('en', { months : Function});Locale#months should be an array of the month names.
moment.locale('en', { months : [ "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" ]});If you need more processing to calculate the name of the month, (for example, if there is different grammar for different formats), Locale#months can be a function with the following signature. It should always return a month name.
moment.locale('en', { months : function (momentToFormat, format) { // momentToFormat is the moment currently being formatted // format is the formatting string if (/^MMMM/.test(format)) { // if the format starts with 'MMMM' return nominative[momentToFormat.month()]; } else { return subjective[momentToFormat.month()]; } }});月份名 (缩写) 1.0.0+
编辑// From 2.8.1 onwardmoment.locale('en', { monthsShort : String[]});moment.locale('en', { monthsShort : Function});// Deprecated in 2.8.1moment.lang('en', { monthsShort : String[]});moment.lang('en', { monthsShort : Function});Locale#monthsShort should be an array of the month abbreviations.
moment.locale('en', { monthsShort : [ "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" ]});Like Locale#months, Locale#monthsShort can be a callback function as well.
moment.locale('en', { monthsShort : function (momentToFormat, format) { if (/^MMMM/.test(format)) { return nominative[momentToFormat.month()]; } else { return subjective[momentToFormat.month()]; } }});星期名 1.0.0+
编辑// From version 2.8.1 onwardmoment.locale('en', { weekdays : String[]});moment.locale('en', { weekdays : Function});// Deprecated version 2.8.1moment.lang('en', { weekdays : String[]});moment.lang('en', { weekdays : Function});Locale#weekdays should be an array of the weekdays names.
moment.locale('en', { weekdays : [ "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday" ]});Locale#weekdays can be a callback function as well.
moment.locale('en', { weekdays : function (momentToFormat, format) { return weekdays[momentToFormat.day()]; }});星期名 (缩写) 1.0.0+
编辑// From 2.8.1 onwardmoment.locale('en', { weekdaysShort : String[]});moment.locale('en', { weekdaysShort : Function});// Deprecated in 2.8.1moment.lang('en', { weekdaysShort : String[]});moment.lang('en', { weekdaysShort : Function});Locale#weekdaysShort should be an array of the weekdays abbreviations.
moment.locale('en', { weekdaysShort : ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"]});Locale#weekdaysShort can be a callback function as well.
moment.locale('en', { weekdaysShort : function (momentToFormat, format) { return weekdaysShort[momentToFormat.day()]; }});星期名 (极简缩写) 1.7.0+
编辑// From 2.8.1 onwardmoment.locale('en', { weekdaysMin : String[]});moment.locale('en', { weekdaysMin : Function});// Deprecated in 2.8.1moment.lang('en', { weekdaysMin : String[]});moment.lang('en', { weekdaysMin : Function});Locale#weekdaysMin should be an array of two letter weekday abbreviations. The purpose of these is for things like calendar pickers, thus they should be as small as possible.
moment.locale('en', { weekdaysMin : ["Su", "Mo", "Tu", "We", "Th", "Fr", "Sa"]});Locale#weekdaysMin can be a callback function as well.
moment.locale('en', { weekdaysMin : function (momentToFormat, format) { return weekdaysMin[momentToFormat.day()]; }});长日期格式 1.1.0+
编辑// From 2.8.1 onwardmoment.locale('en', { longDateFormat : Object});// Deprecated in 2.8.1moment.lang('en', { longDateFormat : Object});Locale#longDateFormat should be an object containing a key/value pair for each long date format L LL LLL LLLL LT LTS. LT should be the time format, and is also used for moment#calendar.
moment.locale('en', { longDateFormat : { LT: "h:mm A", LTS: "h:mm:ss A", L: "MM/DD/YYYY", l: "M/D/YYYY", LL: "MMMM Do YYYY", ll: "MMM D YYYY", LLL: "MMMM Do YYYY LT", lll: "MMM D YYYY LT", LLLL: "dddd, MMMM Do YYYY LT", llll: "ddd, MMM D YYYY LT" }});You can eliminate the lowercase l tokens and they will be created automatically by replacing long tokens with the short token variants.
moment.locale('en', { longDateFormat : { LT: "h:mm A", LTS: "h:mm:ss A", L: "MM/DD/YYYY", LL: "MMMM Do YYYY", LLL: "MMMM Do YYYY LT", LLLL: "dddd, MMMM Do YYYY LT" }});相对时间 1.0.0+
编辑// From 2.8.1 onwardmoment.locale('en', { relativeTime : Object});// Deprecated in 2.8.1moment.lang('en', { relativeTime : Object});Locale#relativeTime should be an object of the replacement strings for moment#from.
moment.locale('en', { relativeTime : { future: "in %s", past: "%s ago", s: "seconds", m: "a minute", mm: "%d minutes", h: "an hour", hh: "%d hours", d: "a day", dd: "%d days", M: "a month", MM: "%d months", y: "a year", yy: "%d years" }});Locale#relativeTime.future refers to the prefix/suffix for future dates, andLocale#relativeTime.past refers to the prefix/suffix for past dates. For all others, a single character refers to the singular, and a double character refers to the plural.
If a locale requires additional processing for a token, it can set the token as a function with the following signature. The function should return a string.
function (number, withoutSuffix, key, isFuture) { return string;}The key argument refers to the replacement key in the Locale#relativeTime object. (eg. s m mm h, etc.)
The number argument refers to the number of units for that key. For m, the number is the number of minutes, etc.
The withoutSuffix argument will be true if the token will be displayed without a suffix, and false if it will be displayed with a suffix. (The reason for the inverted logic is because the default behavior is to display with the suffix.)
The isFuture argument will be true if it is going to use the future suffix/prefix and false if it is going to use the past prefix/suffix. The isFuture argument was added in version 1.6.0.
上午/下午 1.6.0+
编辑// From 2.8.1 onwardmoment.locale('en', { meridiem : Function});// Deprecated in 2.8.1moment.lang('en', { meridiem : Function});If your locale uses 'am/pm', Locale#meridiem can be omitted, as those values are the defaults.
If your locale needs any different computation for am/pm, Locale#meridiem should be a callback function that returns the correct string based on hour, minute, and upper/lowercase.
moment.locale('zh-cn', { meridiem : function (hour, minute, isLowercase) { if (hour < 9) { return "早上"; } else if (hour < 11 && minute < 30) { return "上午"; } else if (hour < 13 && minute < 30) { return "中午"; } else if (hour < 18) { return "下午"; } else { return "晚上"; } }});Before version 1.6.0, Locale#meridiem was a map of upper and lowercase versions of am/pm.
moment.locale('en', { meridiem : { am : 'am', AM : 'AM', pm : 'pm', PM : 'PM' }});This has been deprecated. The 1.6.0 callback function syntax is now used instead.
上午/下午 (解析) 2.1.0+
编辑// From 2.8.1 onwardmoment.locale('en', { meridiemParse : RegExp isPM : Function});// Deprecated in 2.8.1moment.lang('en', { meridiemParse : RegExp isPM : Function});Locale#isPM should return true if the input string is past 12 noon. This is used in parsing the a Atokens.
moment.locale('en', { isPM : function (input) { return ((input + '').toLowerCase()[0] === 'p'); }});To configure what strings should be parsed as input, set the meridiemParse property.
moment.locale('en', { meridiemParse : /[ap]\.?m?\.?/i});日历 1.3.0+
编辑// From 2.8.1 onwardmoment.locale('en', { calendar : Object});// Deprecated in 2.8.1moment.lang('en', { calendar : Object});Locale#calendar should have the following formatting strings.
moment.locale('en', { calendar : { lastDay : '[Yesterday at] LT', sameDay : '[Today at] LT', nextDay : '[Tomorrow at] LT', lastWeek : '[last] dddd [at] LT', nextWeek : 'dddd [at] LT', sameElse : 'L' }});Each of the Locale#calendar keys can also be a callback function with the scope of the current moment. It should return a formatting string.
function () { return '[hoy a la' + ((this.hours() !== 1) ? 's' : '') + '] LT';},比较 1.0.0+
编辑// From 2.8.1 onwardmoment.locale('en', { ordinal : Function});// Deprecated in 2.8.1moment.lang('en', { ordinal : Function});Locale#ordinal should be a function that returns the ordinal for a given number.
moment.locale('en', { ordinal : function (number, token) { var b = number % 10; var output = (~~ (number % 100 / 10) === 1) ? 'th' : (b === 1) ? 'st' : (b === 2) ? 'nd' : (b === 3) ? 'rd' : 'th'; return number + output; }});As of 2.0.0, the ordinal function should return both the number and the ordinal. Previously, only the ordinal was returned.
As of 2.1.0, the token parameter was added. It is a string of the token that is being ordinalized, for example: M or d.
For more information on ordinal numbers, see wikipedia
相对时间临界值 2.7.0+
编辑moment.relativeTimeThreshold(unit); // gettermoment.relativeTimeThreshold(unit, limit); // setterduration.humanize has thresholds which define when a unit is considered a minute, an hour and so on. For example, by default more than 45 seconds is considered a minute, more than 22 hours is considered a day and so on. To change those cutoffs use moment.relativeTimeThreshold(unit, limit) where limit is one of s, m, h, d, M.
// Retrieve existing thresholds moment.relativeTimeThreshold('s'); // 45 moment.relativeTimeThreshold('m'); // 45 moment.relativeTimeThreshold('h'); // 22 moment.relativeTimeThreshold('d'); // 26 moment.relativeTimeThreshold('M'); // 11 // Set new thresholds moment.relativeTimeThreshold('s', 40); moment.relativeTimeThreshold('m', 40); moment.relativeTimeThreshold('h', 20); moment.relativeTimeThreshold('d', 25); moment.relativeTimeThreshold('M', 10);NOTE: Retrieving thresholds was added in 2.8.1.
时间段
Moment.js also has duration objects. Where a moment is defined as single points in time, durations are defined as a length of time.
Durations do not have a defined beginning and end date. They are contextless.
A duration is conceptually more similar to '2 hours' than to 'between 2 and 4 pm today'. As such, they are not a good solution to converting between units that depend on context.
For example, a year can be defined as 366 days, 365 days, 365.25 days, 12 months, or 52 weeks. Trying to convert years to days makes no sense without context. It is much better to use moment#diff for calculating days or years between two moments than to use Durations.
创建 1.6.0+
编辑moment.duration(Number, String);moment.duration(Number);moment.duration(Object);moment.duration(String);To create a duration, call moment.duration() with the length of time in milliseconds.
moment.duration(100); // 100 millisecondsIf you want to create a moment with a unit of measurement other than milliseconds, you can pass the unit of measurement as well.
moment.duration(2, 'seconds');moment.duration(2, 'minutes');moment.duration(2, 'hours');moment.duration(2, 'days');moment.duration(2, 'weeks');moment.duration(2, 'months');moment.duration(2, 'years');The same shorthand for moment#add and moment#subtract works here as well.
Much like moment#add, you can pass an object of values if you need multiple different units of measurement.
moment.duration({ seconds: 2, minutes: 2, hours: 2, days: 2, weeks: 2, months: 2, years: 2});As of 2.1.0, moment supports parsing ASP.NET style time spans. The following formats are supported.
The format is an hour, minute, second string separated by colons like 23:59:59. The number of days can be prefixed with a dot separator like so 7.23:59:59. Partial seconds are supported as well23:59:59.999.
moment.duration('23:59:59');moment.duration('23:59:59.999');moment.duration('7.23:59:59.999');moment.duration('23:59'); //added in 2.3.0As of 2.3.0, moment also supports parsing ISO 8601 durations.
moment.duration('P1Y2M3DT4H5M6S');moment.duration('P1M');拟人化 1.6.0+
编辑moment.duration().humanize();Sometimes, you want all the goodness of moment#from but you don't want to have to create two moments, you just want to display a length of time.
Enter moment.duration().humanize().
moment.duration(1, "minutes").humanize(); // a minutemoment.duration(2, "minutes").humanize(); // 2 minutesmoment.duration(24, "hours").humanize(); // a dayBy default, the return string is suffixless. If you want a suffix, pass in true as seen below.
moment.duration(1, "minutes").humanize(true); // in a minuteFor suffixes before now, pass in a negative number.
moment.duration(-1, "minutes").humanize(true); // a minute ago毫秒 1.6.0+
编辑moment.duration().milliseconds();moment.duration().asMilliseconds();To get the number of milliseconds in a duration, use moment.duration().milliseconds().
It will return a number between 0 and 999.
moment.duration(500).milliseconds(); // 500moment.duration(1500).milliseconds(); // 500moment.duration(15000).milliseconds(); // 0If you want the length of the duration in milliseconds, use moment.duration().asMilliseconds()instead.
moment.duration(500).asMilliseconds(); // 500moment.duration(1500).asMilliseconds(); // 1500moment.duration(15000).asMilliseconds(); // 15000秒 1.6.0+
编辑moment.duration().seconds();moment.duration().asSeconds();To get the number of seconds in a duration, use moment.duration().seconds().
It will return a number between 0 and 59.
moment.duration(500).seconds(); // 0moment.duration(1500).seconds(); // 1moment.duration(15000).seconds(); // 15If you want the length of the duration in seconds, use moment.duration().asSeconds() instead.
moment.duration(500).asSeconds(); // 0.5moment.duration(1500).asSeconds(); // 1.5moment.duration(15000).asSeconds(); // 15分钟 1.6.0+
编辑moment.duration().minutes();moment.duration().asMinutes();As with the other getters for durations, moment.duration().minutes() gets the minutes (0 - 59).
moment.duration().asMinutes() gets the length of the duration in minutes.
小时 1.6.0+
编辑moment.duration().hours();moment.duration().asHours();As with the other getters for durations, moment.duration().hours() gets the hours (0 - 23).
moment.duration().asHours() gets the length of the duration in hours.
天 1.6.0+
编辑moment.duration().days();moment.duration().asDays();As with the other getters for durations, moment.duration().days() gets the days (0 - 29).
moment.duration().asDays() gets the length of the duration in days.
月 1.6.0+
编辑moment.duration().months();moment.duration().asMonths();As with the other getters for durations, moment.duration().months() gets the months (0 - 11).
moment.duration().asMonths() gets the length of the duration in months.
Note: The length of a duration in months is defined as 30 days.
年 1.6.0+
编辑moment.duration().years();moment.duration().asYears();As with the other getters for durations, moment.duration().years() gets the years.
moment.duration().asYears() gets the length of the duration in years.
Note: The length of a duration in years is defined as 365 days.
加法 2.1.0+
编辑moment.duration().add(Number, String);moment.duration().add(Number);moment.duration().add(Duration);moment.duration().add(Object);Mutates the original duration by adding time.
The same keys and shorthands used to create durations can be used here as the second argument.
var a = moment.duration(1, 'd');var b = moment.duration(2, 'd');a.add(b).days(); // 3减法 2.1.0+
编辑moment.duration().subtract(Number, String);moment.duration().subtract(Number);moment.duration().subtract(Duration);moment.duration().subtract(Object);Mutates the original duration by subtracting time.
The same keys and shorthands used to create durations can be used here as the second argument.
var a = moment.duration(3, 'd');var b = moment.duration(2, 'd');a.subtract(b).days(); // 1转换单位 2.1.0+
编辑moment.duration().as(String);As an alternate to Duration#asX, you can use Duration#as('x'). All the shorthand keys frommoment#add apply here as well.
duration.as('hours');duration.as('minutes');duration.as('seconds');duration.as('milliseconds');取值 2.1.0+
编辑moment.duration().get(String);As an alternate to Duration#x() getters, you can use Duration#get('x'). All the shorthand keys frommoment#add apply here as well.
duration.get('hours');duration.get('minutes');duration.get('seconds');duration.get('milliseconds');输出 JSON 2.9.0+
编辑moment.duration().toJSON();When serializing a duration object to JSON, it will be be represented as an ISO8601 string.
JSON.stringify({ postDuration : moment.duration(5, 'm')}); // '{"postDuration":"PT5M"}'Is a Duration 1.6.0+
编辑moment.isDuration(obj);To check if a variable is a moment duration object, use moment.isDuration().
moment.isDuration() // falsemoment.isDuration(new Date()) // falsemoment.isDuration(moment()) // falsemoment.isDuration(moment.duration()) // truemoment.isDuration(moment.duration(2, 'minutes')) // true工具类函数
Moment exposes some methods which may be useful to people extending the library or writing custom parsers.
标准化单位 2.3.0+
编辑moment.normalizeUnits(String);Many of Moment's functions allow the caller to pass in aliases for unit enums. For example, all of thegets below are equivalent.
var m = moment();m.get('y');m.get('year');m.get('years');If you're extending the library, you may want access to Moment's facilities for that in order to better align your functionality with Moment's.
moment.normalizeUnits('y'); // 'year'moment.normalizeUnits('Y'); // 'year'moment.normalizeUnits('year'); // 'year'moment.normalizeUnits('years'); // 'year'moment.normalizeUnits('YeARS'); // 'year'无效对象 2.3.0+
编辑moment.invalid(Object);You can create your own invalid Moment objects, which is useful in making your own parser.
var m = moment.invalid();m.isValid(); // falsem.format(); // 'Invalid date'm.parsingFlags().userInvalidated; // trueinvalid also accepts an object which specifies which parsing flags to set. This will not set theuserInvalidated parsing flag unless it's one of the properties specified.
var m = moment.invalid({invalidMonth: 'Actober'});m.parsingFlags().invalidMonth; // 'Actober'You need not specify parsing flags recognized by Moment; the Moment will be invalid nonetheless, and the parsing flags will be returned by parsingFlags().
插件
Some other people have made plugins for Moment.js that may be useful to you.
Strftime
编辑npm install moment-strftimeIf you are more comfortable working with strftime instead of LDML-like parsing tokens, you can use Ben Oakes' plugin moment-strftime.
The repository is located at github.com/benjaminoakes/moment-strftime
ISO Calendar
编辑npm install moment-isocalendarIf you are looking for a Python-like isocalendar method, you can use Rocky Meza's plugin
moment-isocalendar
Calling the isocalendar method on a moment will return an array like the following:
[year, week_of_year, day_of_week, minutes_since_midnight]
moment().isocalendar(); // [2012, 8, 5, 870]You can also reconstruct a moment from a isocalendar array.
moment.fromIsocalendar([2011, 51, 5, 870]).format('LLLL');// "Friday, December 23 2011 2:30 PM"The repository is located at github.com/fusionbox/moment-isocalendar
Date Ranges
编辑npm install moment-rangeIf you need to work with date ranges, you can use Gianni Chiappetta's plugin moment-range.
Documentation can be found on the homepage github.com/gf3/moment-range.
And it is also available for the web at the repository below.
The repository is located at github.com/gf3/moment-range
Twix
编辑npm install twixAnother range plugin is Isaac Cambron's library Twix. It has many range-related features and excels at formatting ranges readably. For example,
var t = moment("1/25/1982 9:30 AM").twix("1/25/1982 1:30 PM");t.isCurrent(); // falset.count('minutes'); // 241t.format(); // 'Jan 25, 1982, 9:30 AM - 1:30 PM't.simpleFormat("h:m"); // '9:30 - 1:30'Full documentation of all the options and features is here.
It's available on npm like so:
npm install twixOr just grab the JS file from here.
If you're trying to format times for tweets like the way Twitter does, you can use the moment.twitter plugin by @hijonathan.
It's a simple way to display both short and long versions of human-readable timestamps.
moment().subtract(5, 'hours').twitterLong();// 5 hoursYes, it does smart pluralization.
moment().subtract(1, 'hour').twitterLong();// 1 hourNot short enough for you?
moment().subtract(6, 'days').twitterShort();// 6dJalaali Calendar
编辑npm install moment-jalaaliIf you want to work with Jalaali calendar system (Jalali, Persian, Khorshidi or Shamsi), you can use Behrang Noruzi Niya's plugin moment-jalaali.
When installed, it will wrap moment and moment will be able to format and parse Jalaali years and months. Here is a short example:
var m = moment('1360/5/26', 'jYYYY/jM/jD'); // Parse a Jalaali date.m.format('jYYYY/jM/jD [is] YYYY/M/D'); // 1360/5/26 is 1981/8/17The repository is located at github.com/behrang/moment-jalaali.
MSDate
编辑If you are using OLE Automation dates in .NET check out Markit On Demand's moment-msdate. Using this plugin allows you to format OA dates into JavaScript dates and vice-versa.
Convert a moment to an OA date:
moment().toOADate(); // a floating point numberOr, convert an OA date to a moment:
moment.fromOADate(41493); // Wed Aug 07 2013 00:00:00 GMT-0600 (MDT)More information and detailed docs can be found on GitHub at http://markitondemand.github.io/moment-msdate/.
Fiscal Quarters
编辑If you ever have need for Fiscal, Calendar or Academic quarters, you can use the moment-fquarter plugin by @robgallen.
At its simplest, just call the fquarter method on any moment object. It returns a formatted string with April being the first quarter.
moment("2013-01-01").fquarter();// Q4 2012/13You can pass in any month as the starting quarter, e.g. July
moment("2013-01-01").fquarter(7);// Q3 2012/13If you want calendar quarters, start in January
moment("2013-01-01").fquarter(1);// Q1 2013Precise Range
编辑The Precise Range plugin, written by Rob Dawson, can be used to display exact, human-readable representations of date/time ranges
moment("2014-01-01 12:00:00").preciseDiff("2015-03-04 16:05:06"); // 1 year 2 months 3 days 4 hours 5 minutes 6 secondsmoment.preciseDiff("2014-01-01 12:00:00", "2014-04-20 12:00:00");// 3 months 19 daysRecur
编辑npm install moment-recurIf you need to work with recurring dates, you can use Casey Trimm's plugin moment-recur.
This plugin will allow you to create length-based intervals (days, weeks, etc.) and calendar-based intervals (daysOfMonth, monthsOfYear, etc.).
It provides a matches function to test whether a date recurs according to the rules set, as well as generator functions to get the next and previous dates in a series.
The repository, documentation, and many more examples can be found at github.com/c-trimm/moment-recur
var interval = moment( "01/01/2014" ).recur().every(2).days(); // Length Intervalinterval.matches( "01/03/2014" ); // trueinterval.next( 2, "L" ); // ["01/03/2014", "01/05/2014"]interval.forget( "days" ); // Remove a ruleinterval.dayOfMonth( 10 ); // Calendar Intervalinterval.matches( "05/10/2014" ); // trueinterval.previous( 2, "L" ); // ["12/10/2013", "11/10/2013"]Parse Date Format
编辑npm install moment-parseformatThis plugin extracts the format of a date/time string.
var format = moment.parseFormat('Thursday, February 6th, 2014 9:20pm');// dddd, MMMM Do, YYYY h:mmamoment().format(format); // formatThat allows to create smart date inputs that let your users set a Date/Time and lets you extract the user's preferred format for future usage. Find an example usage of it at minutes.io.
The Plugin has been authored by @gr2m. Links: Demo | Source
Java DateFormat Parser
编辑npm install moment-jdateformatparserIf you want to work with the java.text.DateFormat you can use this plugin.
For example,
moment("2013-12-24 14:30").formatWithJDF("dd.MM.yyyy"); // returns the formatted date "24.12.2013"moment().toJDFString("DD.MM.YYYY"); // returns the Java format pattern "dd.MM.yyyy"The repository is located at github.com/MadMG/moment-jdateformatparser
Hijri Calendar
编辑npm install moment-hijriIf you want to work with Hijri calendar then you can use moment-hijri plugin. moment-hijri is a moment plugin for the Hijri lunar calendar based on Umm al-Qura calculations. This plugin is developed by Suhail Alkowaileet.
When you install it, it will wrap moment and you will be able to parse Hijri dates. Here is a short example:
m = moment('1410/8/28', 'iYYYY/iM/iD'); // Parse a Hijri date.m.format('iYYYY/iM/iD [is] YYYY/M/D'); // 1410/8/28 is 1990/3/25The repository is located at github.com/xsoh/moment-hijri.
Transform
编辑bower install moment-transformmoment-transform is a plugin that manipulated dates through patterns. You can use basic operations –set/add/substract– on individual parts (hours, month, …) of a Moment instance.
moment().transform('YYYY-MM-+01 00:00:00.000'); // Tonight at midnightmoment().transform('14:30:00.000'); // Today, 2:30 pmmoment().transform('YYYY-MM--30 00:00:00.000'); // 30 days agoOptional parameters lets you specify custom patterns and force strict pattern usage (non-alphabetic characters are not mandatory in passed string by default).
moment().transform('+01MMYYYY', 'DD/MM/YYYY', false); // Tomorrow, same timemoment().transform('+01MMYYYY', 'DD/MM/YYYY', true); // Invalid date更多有关moment.js的介绍，请访问项目官网：http://momentjs.com/
当前时间：moment().format('YYYY-MM-DD HH:mm:ss');
2017-09-07 10:36:14今天是星期几：moment().format('d');
4Unix时间戳：moment().format('X');
1504751774相对时间：moment("20130101", "YYYYMMDD").fromNow();
5 years ago相对时间：moment("20151010", "YYYYMMDD").fromNow();
2 years ago7天后的日期：moment().add('days',7).format('YYYY年MM月DD日');
2017年09月14日9小时后：moment().add('hours',9).format('HH:mm:ss');
19:36:14明天moment().add(1, 'days').calendar();
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