#!/usr/bin/env python
# -*- coding: utf-8 -*-
import time
print(time.clock())##返回处理器时间,3.3开始已废弃 , 改成了time.process_time()测量处理器运算时间,不包括sleep时间,不稳定,mac上测不出来
print(time.process_time())
print(time.altzone)#返回与utc时间的时间差，以秒计算
print(time.asctime())#返回时间格式“Thu Nov 3 10:04:39 2016”
print(time.localtime())#返回本地时间的struct time 对象格式
print(time.gmtime(time.time()-800000))#返回utc时间的struc时间对象格式
print(time.asctime(time.localtime()))#返回时间格式“Thu Nov 3 10:07:36 2016”
print(time.ctime())#返回Thu Nov 3 10:08:41 2016
#日期字符串转成 时间戳
string_2_struct = time.strptime("2016/05/22","%Y/%m/%d")#将日期字符串转成 struct时间对象格式
print(string_2_struct)
#
struct_2_stamp = time.mktime(string_2_struct)#将struct时间对象转成时间戳
print(struct_2_stamp)
#将时间戳转为字符串格式
print(time.gmtime(time.time()-86640))#将utc时间戳转换成struct_time格式
print(time.strftime("%Y-%m-%d %H:%M:%S",time.gmtime()))#将utc struct_time格式转成指定的字符串格式
#时间加减
import datetime
print(datetime.datetime.now())#返回 2016-11-03 10:51:04.385070
print(datetime.date.fromtimestamp(time.time()))#时间戳直接转成日期格式 2016-11-03
print(datetime.datetime.now()+datetime.timedelta(3))# 当前时间+3天
print(datetime.datetime.now()+datetime.timedelta(-3))# 当前时间-3天
print(datetime.datetime.now()+datetime.timedelta(hours=3))#当前时间+3小时
print(datetime.datetime.now()+datetime.timedelta(minutes=3))#当前时间+3分钟
#
c_time = datetime.datetime.now()
print(c_time.replace(minute=3,hour=2)) #时间替换
| Directive | Meaning | Notes |
|---|
%a |
Locale’s abbreviated weekday name. |
|
%A |
Locale’s full weekday name. |
|
%b |
Locale’s abbreviated month name. |
|
%B |
Locale’s full month name. |
|
%c |
Locale’s appropriate date and time representation. |
|
%d |
Day of the month as a decimal number [01,31]. |
|
%H |
Hour (24-hour clock) as a decimal number [00,23]. |
|
%I |
Hour (12-hour clock) as a decimal number [01,12]. |
|
%j |
Day of the year as a decimal number [001,366]. |
|
%m |
Month as a decimal number [01,12]. |
|
%M |
Minute as a decimal number [00,59]. |
|
%p |
Locale’s equivalent of either AM or PM. |
(1) |
%S |
Second as a decimal number [00,61]. |
(2) |
%U |
Week number of the year (Sunday as the first day of the week) as a decimal number [00,53]. All days in a new year preceding the first Sunday are considered to be in week 0. |
(3) |
%w |
Weekday as a decimal number [0(Sunday),6]. |
|
%W |
Week number of the year (Monday as the first day of the week) as a decimal number [00,53]. All days in a new year preceding the first Monday are considered to be in week 0. |
(3) |
%x |
Locale’s appropriate date representation. |
|
%X |
Locale’s appropriate time representation. |
|
%y |
Year without century as a decimal number [00,99]. |
|
%Y |
Year with century as a decimal number. |
|
%z |
Time zone offset indicating a positive or negative time difference from UTC/GMT of the form +HHMM or -HHMM, where H represents decimal hour digits and M represents decimal minute digits [-23:59, +23:59]. |
|
%Z |
Time zone name (no characters if no time zone exists). |
|
%% |
A literal '%' character. |