python get current time usage
- First import the library: import datetime
- Get the current date and time: now_time = datetime.datetime.now ()
- Format to the date we want: strftime () adds 1 hour to the current time: add_hour = datetime.datetime.now () + datetime.timedelta (hours = 1) # Need to import timedelta library format "hour": now_hour = add_hour. strftime ('% H')
- 比如：“2020-04-19”：datetime.datetime.now().strftime('%Y-%m-%d')
- Three ways to exist time: time object, time string, time stamp .
- String to datetime:
- string = '2020-04-19 11:23:00'
- time1 = datetime.datetime.strptime(string,'%Y-%m-%d %H:%M:%S')
- print time1
- 2020-04-19 11:23:00
- Datetime to string:
- time1_str = datetime.datetime.strftime(time1,'%Y-%m-%d %H:%M:%S')
- time1_str
- '2020-04-19 11:23:00'
- Timestamp to time object:
- time1 = time.localtime()
- time1_str = datetime.datetime.fromtimestamp(time1)
- String to datetime:
- Format parameters :
- % a shorthand for day of the week
- % A full name of the day of the week
- % b shorthand for month
- % B Full month name
- % c standard date time string
- % C last two digits of year
- % d Decimal day of the month
- % D month / day / year
- % e in the two-character field, the day of the month in decimal notation
- % F year-month-day
- % g The last two digits of the year, using a week-based year
- % G Yearly Year, using week-based year
- % h abbreviated month name
- % H 24-hour hour
- % I 12-hour clock
- % j Decimal day of the year
- % m Decimal month
- % M Minutes in ten hours
- % n newline
- % p Equivalent display of local AM or PM
- % r 12 hours
- % R displays hours and minutes: hh: mm
- % S decimal seconds
- % t horizontal tab
- % T displays hours, minutes and seconds: hh: mm: ss
- % u Day of the week, Monday is the first day (value from 0 to 6, Monday is 0)
- % U Week of the first year, with Sunday as the first day (value from 0 to 53)
- % V Week of each year, using week-based year
- % w Day of the week in decimal (value from 0 to 6, Sunday is 0)
- % W Week of the year, with Monday as the first day (value from 0 to 53)
- % x standard date string
- % X standard time string
- % y decimal year without century (value from 0 to 99)
- % Y Ten-year year with century part
- % z,% Z time zone name, or null character if no time zone name can be obtained.
- %% percent sign
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Reprinted: https://www.cnblogs.com/xiaoxiaoweng/p/10966220.html