Python time-processing-time module

Time Module

There are three ways to represent time:

• Timestamp: Represents the number of seconds since January 1, 1970 0 o'clock to date
• Formatted string representation: This representation is more accustomed to our usual reading method, such as 2018-04-24 00:00:00
• Formatted meta-ancestor means: a ganso with nine elements

Conversion of timestamp and format tuple to each other

ImportTime#importing the time moduleD= Time.time ()#Displays the current timestampdout[16]: 1524570062.944023Time.localtime (d)#Converts a timestamp into a tuple with 9 elements, converted to local timeOUT[17]: Time.struct_time (tm_year=2018, tm_mon=4, tm_mday=24, tm_hour=19, tm_min=41, tm_sec=2, Tm_wday=1, tm_yday=114, tm_isdst=0) Time.gmtime (d)#Converts a timestamp to a tuple with 9 elements, converted to UTC timeOUT[18]: Time.struct_time (tm_year=2018, tm_mon=4, tm_mday=24, tm_hour=11, tm_min=41, tm_sec=2, Tm_wday=1, tm_yday=114, tm_isdst=0) LD= Time.localtime (d)#Ld.tm_year#converted tuples, which can be calculated independently of the corresponding time as requiredOUT[20]: 2018time.mktime (LD)#converting tuples back to timestampsOUT[21]: 1524570062.0

Note: UTC time is GMT, 8 hours later than the East eight zone!

Conversion of timestamps to formatted strings:

Timestamp--------> Format tuple----------> format string

Help (Time.strftime)-On built-inchfunction strftimeinchmodule Time:strftime (...) Strftime (format[, tuple])-String#The format of the function is usedConvert a time tuple to a string according to a format specification. See the Library Reference manual forformatting codes. when the time tuple is  notPresent, current time as returned by LocalTime () isused. Commonly used format codes:%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 fromUTC. %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.%I Hour (12-hour clock) as a decimal number [01,12]. %p Locale's equivalent of either AM or PM.Other codes is available on your platform. See documentation forThe C library strftime function.

Ld#formatting the tuple's dataOUT[22]: Time.struct_time (tm_year=2018, tm_mon=4, tm_mday=24, tm_hour=19, tm_min=41, tm_sec=2, Tm_wday=1, tm_yday=114, tm_isdst=0) Time.strftime ("%y-%m-%d%h:%m:%s", LD) out[25]:'2018-04-24 19:41:02'Time.strftime ("%y-%m-%d%x", LD) out[26]:'2018-04-24 19:41:02'Time.strftime ("%y-%m-%d%x%p", LD)#time stamp conversion to formatted tupleOUT[27]:'2018-04-24 19:41:02 PM'#convert string to formatted tuple, note format correspondsTime.strptime ('2018-04-24 19:41:02 PM',"%y-%m-%d%h:%m:%s%p") out[+]: Time.struct_time (tm_year=2018, tm_mon=4, tm_mday=24, tm_hour=19, tm_min=41, tm_sec=2, Tm_wday=1, tm_yday=114, tm_ ISDST=-1)

Convert to character format based on timestamp

 help (time.ctime) Help on built -in     function CTime in   module Time:ctime (...) CTime (seconds) -> string Convert a time   In  seconds since the Epoch to a string in   local    Time. This  is  equivalent to Asctime (localtime (seconds)). When the time is tuple is  not  present, current Ti Me as returned by LocalTime () is   Used.time.ctime ( Time.time ()) out[:  " tue APR 24 20:02:46 2018   " 

Convert a tuple to a string based on the struct_time format

Help (Time.asctime) to built-in  module time:asctime (...)     - string        'Sat June 16:26:11 1998'.      is  not present, current time as returned by LocalTime ()      is used.time.asctime (LD) out['Tue Apr 19:41:02 2018'

DateTime module

The Dateimte module encapsulates the time module and provides an interface for more functionality:

See a blog on the CSDN, speak pretty detailed, Bo master banned reprint, so attached link. DateTime module

Python time-processing-time module