python当前时间,日期格式化,字符串日期互转

来源：互联网发布：点击按钮执行php 编辑：程序博客网时间：2024/05/16 01:22

获取系统时间的二种方法,注意类型

# 方法一import timetime_int = time.time()local_time = time.strftime("%Y-%m-%d %H:%M:%S",time.localtime(time.time()))print type(time.time()), time.time()print type(local_time), local_time# 方法二import datetimelocal_time = datetime.datetime.now()print type(local_time), local_time输出结果:<type 'float'> 1466149146.19<type 'str'> 2016-06-17 15:39:06<type 'datetime.datetime'> 2016-06-17 15:39:06.186000

日期字符串互转

import datetimedata_str = '2016-05-01 12:01:01'# 字符串转日期data_time = datetime.datetime.strptime(data_str, '%Y-%m-%d %H:%M:%S')print type(data_time), data_time# 日期转字符串local_str = data_time.strftime('%Y-%m-%d %H:%M:%S')print  type(local_str), local_str

综合示例:
utc时间转本地时间

import datetimedef utc2local(date_str, time_str):  utc_str = datetime.datetime.strptime(date_str, '%m/%d/%Y').strftime('%Y-%m-%d') + ' ' + datetime.datetime.strptime(time_str, '%I:%M:%S %p').strftime('%H:%M:%S')  utc_datetime = datetime.datetime.strptime(utc_str, '%Y-%m-%d %H:%M:%S')  local_datetime = utc_datetime + datetime.timedelta(hours=8)  local_str = local_datetime.strftime('%Y-%m-%d %H:%M:%S')  return local_strprint utc2local('06/16/2016', '7:56:15 AM')

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