js关于时间日期的一些方法汇总

来源：互联网发布：节能降温软件编辑：程序博客网时间：2024/05/21 07:11

///////////时间差，正数/////////////////
function DateDiff(sDate1, sDate2)
{
var aDate, oDate1, oDate2, iDays;
aDate = sDate1.split("-");
oDate1 = new Date(aDate[1] + '-' + aDate[2] + '-' + aDate[0]);
aDate = sDate2.split("-");
oDate2 = new Date(aDate[1] + '-' + aDate[2] + '-' + aDate[0]);
iDays = parseInt(Math.abs(oDate1 - oDate2) / 1000 / 60 / 60 /24);
return iDays;
}
///////////时间差，包括负数////////////
function DateDiff3(sDate1, sDate2)
{
var aDate, oDate1, oDate2, iDays;
aDate = sDate1.split("-");
oDate1 = new Date(aDate[1] + '-' + aDate[2] + '-' + aDate[0]);
aDate = sDate2.split("-");
oDate2 = new Date(aDate[1] + '-' + aDate[2] + '-' + aDate[0]);
iDays = parseInt((oDate1 - oDate2) / 1000 / 60 / 60 /24);
return iDays;
}
///////////////增加天数//////////////////
function addDay(dt, days){
var t1 = new Date(new Date(dt).valueOf() + days*24*60*60*1000);// date + days
return (t1.getMonth() + 1)+"/"+t1.getDate()+ "/" + t1.getFullYear();
}

///////////月份转换成英文格式////////////////////
function transformEngDate(dt){
monName = new Array("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec");
var t1 = new Date(dt);
return t1.getDate()+"-"+(monName[t1.getMonth()]);
}

//////////日历格式转换/////////////
function formatDate(dt)
{
var t1 = new Date(dt);
return t1.getFullYear()+"-"+(t1.getMonth() + 1) + "-" + t1.getDate();
}
/////////取得星期/////////////
function getWeek(dt)
{
dt = dt.replace('-', '/');
var week= new Date(dt);
return week.getDay();
}