time模块

import time

# print(help(time.strftime))
"""
%Y  Year with century as a decimal number.
%m  Month as a decimal number [01,12].
%d  Day of the month as a decimal number [01,31].
%H  Hour (24-hour clock) as a decimal number [00,23].
%M  Minute as a decimal number [00,59].
%S  Second as a decimal number [00,61].
%z  Time zone offset from UTC.  +0800
%a  Locale's abbreviated weekday name.  wed
%A  Locale's full weekday name. Wednesday
%b  Locale's abbreviated month name.
%B  Locale's full month name.
%c  Locale's appropriate date and time representation.
%I  Hour (12-hour clock) as a decimal number [01,12].
%p  Locale's equivalent of either AM or PM.
%X  本地时间  16:50:32
x    本地日期  04/26/17
"""

print(time.time()) #时间戳 1493198419.0

print("结构对象 --->字符串")
print(time.strftime('%Y-%m-%d %X %z %p  %A',time.localtime())) #2017-04-26 16:50:32 +0800 PM  Wednesday
print(time.strftime('%Y-%m-%d %x %z %p  %A',time.localtime())) #2017-04-26 04/26/17 +0800 PM  Wednesday
print(time.strftime('%Y-%m-%d %H:%M:%S  %A',time.localtime())) #2017-04-26 16:55:23  Wednesday  ==%X

print("字符串--->结构对象")
print(time.strptime('2017-04-26','%Y-%m-%d'))
print(time.strptime("Wed Apr 26 17:20:19 2017","%a %b %d %H:%M:%S %Y"))
"""
time.struct_time(tm_year=2017, tm_mon=4, tm_mday=26, tm_hour=17,
tm_min=20, tm_sec=19, tm_wday=2, tm_yday=116, tm_isdst=-1)

time.struct_time(tm_year=2017, tm_mon=4, tm_mday=26, tm_hour=0,
tm_min=0, tm_sec=0, tm_wday=2, tm_yday=116, tm_isdst=-1)
"""
print("时间戳 --->结构对象")
print(time.gmtime(time.time()+3600*24*3))  #三天
print(time.localtime(time.time()))
"""
time.struct_time(
 tm_year=2017, tm_mon=4, tm_mday=29, tm_hour=9, tm_min=15,
 tm_sec=24, tm_wday=5, tm_yday=119, tm_isdst=0)
"""
"""
time.struct_time(
    tm_year=2017, tm_mon=4, tm_mday=26, tm_hour=0, tm_min=0, tm_sec=0,
    tm_wday=2, tm_yday=116, tm_isdst=-1)
"""
print('--------结构对象》》》时间戳----------------------')
print(time.mktime(time.localtime(time.time()+3600*24))) #1493198419.0
print((1493284857.0-1493198419.0)/3600)  #24.010555555555555==1天

print("时间戳与字符串时间没有直接转")
print(time.ctime(1493198419.0))  #Wed Apr 26 17:20:19 2017