PyPI - Datetime

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PyPI for Python 3.7

import datetime

https://docs.python.org/3.7/library/datetime.html

timedelta Object

https://docs.python.org/3.7/library/datetime.html#timedelta-objects

Constructor:

datetime.timedelta(days=0, seconds=0, microseconds=0, milliseconds=0, minutes=0, hours=0, weeks=0)

It also has a lot of operations. See the Documents for detail.

date Object

https://docs.python.org/3.7/library/datetime.html#date-objects

Datetime object is a combination of a date and a time. I like to use datetime object instead.

datetime Object

https://docs.python.org/3.7/library/datetime.html#datetime-objects

Constructor:

• datetime.datetime(year, month, day, hour=0, minute=0, second=0, microsecond=0, tzinfo=None, *, fold=0)
• datetime.datetime.fromtimestamp(timestamp, tz=None)，By timestamp
• datetime.datetime.combine(date, time, tzinfo)，Combine date object and time object
• datetime.datetime.strptime(date_string, format)，By string and format

Ordinal Date is the proleptic Gregorian ordinal of the date. It is the count from 0001-01-01, just like timestamp.

Instance methods:

(Notice: a is the name of a exist datetime object)

• a.replace(), Return a datetime with the same attributes, except for those attributes given new values.
• a.astimezone(), Return a datetime object with the timezone you give.
• a.timetuple(), Return a tuple. You can pick up what you need by index or others.
• a.toordinal(), Return the ordinal.
• a.timestamp(), Return the timestamp.
• a.strftime(format), Return the format string.

timezone Object

https://docs.python.org/3.7/library/datetime.html#timezone-objects

• datetime.timezone(offset), The offset attribute must be timedelta.

String format:

(strftime --> string from time. strptime())

https://docs.python.org/3.7/library/datetime.html#strftime-and-strptime-behavior

PyPI - Datetime

标签：new   struct   ret   values   set   bit   head   other   timezone   

原文地址：https://www.cnblogs.com/kaimobile/p/10390967.html