Python's Time function

Import time

Print (Time.clock ())
Print (Time.process_time ())
Print (Time.time ()) #返回当前系统时间戳
Print (Time.ctime ()) #返回当前系统时间
Print (Time.ctime (Time.time () -86640)) #将时间戳转为字符串
Print (Time.gmtime (Time.time () -86640)) #将时间戳转为struct_time格式
Print (Time.localtime (Time.time () -86640)) #将时间戳转为struct_time格式 but returns to local rush time
Print (Time.mktime (Time.localtime ())) #与time. LocalTime () function instead, turn struct_time back to timestamp
#time. Sleep (1) #睡眠4秒
Print (Time.strftime ("%y-%m-%d%h:%m:%s"), Time.gmtime ()) #将struct_time转成指定字符串格式
Print (Time.strptime ("2016-01-28", "%y-%m-%d")) #字符串格式转成struct_time

Import datetime

Print (Datetime.date.today ()) #输出格式 2016-05-25
Print (Datetime.date.fromtimestamp (Time.time ()-864400)) #将时间戳转成日期格式
Current_time = Datetime.datetime.now ()
Print (current_time) #输出2016-05-25 19:33:49.521486
Print (Current_time.timetuple ()) #返回struct_time格式
Print (Current_time.replace (2014,9,12)) #输出2014-09-12 19:06:24.074900, returns the current time, but the specified value is replaced
Str_to_date = Datetime.datetime.strptime ("2016-05-25 19:42:00", "%y-%m-%d%h:%m:%s") #将字符串转换成日期格式
New_date = Datetime.datetime.now () + Datetime.timedelta (days=10)
New_date = Datetime.datetime.now () + Datetime.timedelta (days=-10)
New_date = Datetime.datetime.now () + Datetime.timedelta (hours=-10)
New_date = Datetime.datetime.now () + Datetime.timedelta (seconds=120)


Time parameters and their meanings:

Parameters	Letter Meaning
%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.
%s	Second as a decimal number [00,61].
%u	Week number of the year (Sunday as the first day of the Week) as a decimal number [00,53]. A New year preceding the first Sunday is considered to is in week 0.
%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]. A New year preceding the first Monday is considered to is in week 0.
%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 repres Ents 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.

Python's Time function