Formatting and Parsing of Time and Datetime in Python

[xxleyi]

时间的格式化与解析这块，零零散散的学过，用过，在此处做个小总结，顺道引入一个比较棒的 Python 网站。

Python strptime() - string to datetime object

strptime is short for "parse time" where strftime is for "formatting time". That is, strptime is the opposite of strftime though they use, conveniently, the same formatting specification.

[xxleyi]

Format Code List

The table below shows all the format codes that you can use.

Directive Meaning Example

%a Abbreviated weekday name. Sun, Mon, ...

%A Full weekday name. Sunday, Monday, ...

%w Weekday as a decimal number. 0, 1, ..., 6

%d Day of the month as a zero-padded decimal. 01, 02, ..., 31

%-d Day of the month as a decimal number. 1, 2, ..., 30

%b Abbreviated month name. Jan, Feb, ..., Dec

%B Full month name. January, February, ...

%m Month as a zero-padded decimal number. 01, 02, ..., 12

%-m Month as a decimal number. 1, 2, ..., 12

%y Year without century as a zero-padded decimal number. 00, 01, ..., 99

%-y Year without century as a decimal number. 0, 1, ..., 99

%Y Year with century as a decimal number. 2013, 2019 etc.

%H Hour (24-hour clock) as a zero-padded decimal number. 00, 01, ..., 23

%-H Hour (24-hour clock) as a decimal number. 0, 1, ..., 23

%I Hour (12-hour clock) as a zero-padded decimal number. 01, 02, ..., 12

%-I Hour (12-hour clock) as a decimal number. 1, 2, ... 12

%p Locale’s AM or PM. AM, PM

%M Minute as a zero-padded decimal number. 00, 01, ..., 59

%-M Minute as a decimal number. 0, 1, ..., 59

%S Second as a zero-padded decimal number. 00, 01, ..., 59

%-S Second as a decimal number. 0, 1, ..., 59

%f Microsecond as a decimal number, zero-padded on the left. 000000 - 999999

%z UTC offset in the form +HHMM or -HHMM.  

%Z Time zone name.  

%j Day of the year as a zero-padded decimal number. 001, 002, ..., 366

%-j Day of the year as a decimal number. 1, 2, ..., 366

%U Week number of the year (Sunday as the first day of the week). All days in a new year preceding the first Sunday are considered to be in week 0. 00, 01, ..., 53

%W Week number of the year (Monday as the first day of the week). All days in a new year preceding the first Monday are considered to be in week 0. 00, 01, ..., 53

%c Locale’s appropriate date and time representation. Mon Sep 30 07:06:05 2013

%x Locale’s appropriate date representation. 09/30/13

%X Locale’s appropriate time representation. 07:06:05

%% A literal '%' character. %