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HomeBackend DevelopmentPython TutorialIntroduction to the format of using Python to get the current date

How to get the current date and time in Python? In the Python language, what module or class function can we call to get the current time or date?

Of course you can use the time module, which provides various time-related functions. But some functions in this module are not available on some platforms. So what to do? We
can use a more advanced object-oriented interface function: datetime. It provides a variety of simple or complex methods for manipulating dates and times.

Use the time module in python to get the current time

time.strftime(format)
time.strftime("%H:%M:%S") ##24小时格式
time.strftime("%I:%M:%S")## 12小时格式

Example
A simple python program to get the date and time of the day

#!/usr/bin/python
import time
print (time.strftime("%H:%M:%S"))
## 12 hour format ##
print (time.strftime("%I:%M:%S"))

Example output:

18:11:30
6:11:30

Python program to print out the current date

#!/usr/bin/python
import time
## dd/mm/yyyy格式
print (time.strftime("%d/%m/%Y"))

Sample output:
11/10/2013

Format parameters:

%a 星期几的简写
%A 星期几的全称
%b 月分的简写
%B 月份的全称
%c 标准的日期的时间串
%C 年份的后两位数字
%d 十进制表示的每月的第几天
%D 月/天/年
%e 在两字符域中,十进制表示的每月的第几天
%F 年-月-日
%g 年份的后两位数字,使用基于周的年
%G 年分,使用基于周的年
%h 简写的月份名
%H 24小时制的小时
%I 12小时制的小时
%j 十进制表示的每年的第几天
%m 十进制表示的月份
%M 十时制表示的分钟数
%n 新行符
%p 本地的AM或PM的等价显示
%r 12小时的时间
%R 显示小时和分钟:hh:mm
%S 十进制的秒数
%t 水平制表符
%T 显示时分秒:hh:mm:ss
%u 每周的第几天,星期一为第一天 (值从0到6,星期一为0)
%U 第年的第几周,把星期日做为第一天(值从0到53)
%V 每年的第几周,使用基于周的年
%w 十进制表示的星期几(值从0到6,星期天为0)
%W 每年的第几周,把星期一做为第一天(值从0到53)
%x 标准的日期串
%X 标准的时间串
%y 不带世纪的十进制年份(值从0到99)
%Y 带世纪部分的十制年份
%z,%Z 时区名称,如果不能得到时区名称则返回空字符。
%% 百分号

Use the datetime module to Get the current date and time
The parameters are as follows:

cur=datetime.datetime.now()
cur.hour
cur.minute
cur.year
cur.day
cur.month

Example:

#!/usr/bin/python
import datetime
i = datetime.datetime.now()
print ("当前的日期和时间是 %s" % i)
print ("ISO格式的日期和时间是 %s" % i.isoformat() )
print ("当前的年份是 %s" %i.year)
print ("当前的月份是 %s" %i.month)
print ("当前的日期是  %s" %i.day)
print ("dd/mm/yyyy 格式是  %s/%s/%s" % (i.day, i.month, i.year) )
print ("当前小时是 %s" %i.hour)
print ("当前分钟是 %s" %i.minute)
print ("当前秒是  %s" %i.second)

Example output:

当前的日期和时间 = 2013-10-11 19:38:19.4545
ISO格式的日期和时间 = 2013-10-11T19:38:19.4545
当前的年份 2013
当前的月份 10
当前的日期  11
dd/mm/yyyy 格式是  11/10/2013
当前小时是 0
当前分钟是 38
当前秒是  19

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