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[929] datetime format (strftime() and strptime() Format Codes)

发布时间 2023-11-01 07:47:01作者: McDelfino

ref: strftime() and strptime() Format Codes

The following is a list of all the format codes that the 1989 C standard requires, and these work on all platforms with a standard C implementation.

Directive

Meaning

Example

Notes

%a

Weekday as locale’s abbreviated name.
Sun, Mon, …, Sat (en_US);
So, Mo, …, Sa (de_DE)

(1)

%A

Weekday as locale’s full name.
Sunday, Monday, …, Saturday (en_US);
Sonntag, Montag, …, Samstag (de_DE)

(1)

%w

Weekday as a decimal number, where 0 is Sunday and 6 is Saturday.

0, 1, …, 6

  

%d

Day of the month as a zero-padded decimal number.

01, 02, …, 31

(9)

%b

Month as locale’s abbreviated name.
Jan, Feb, …, Dec (en_US);
Jan, Feb, …, Dez (de_DE)

(1)

%B

Month as locale’s full name.
January, February, …, December (en_US);
Januar, Februar, …, Dezember (de_DE)

(1)

%m

Month as a zero-padded decimal number.

01, 02, …, 12

(9)

%y

Year without century as a zero-padded decimal number.

00, 01, …, 99

(9)

%Y

Year with century as a decimal number.

0001, 0002, …, 2013, 2014, …, 9998, 9999

(2)

%H

Hour (24-hour clock) as a zero-padded decimal number.

00, 01, …, 23

(9)

%I

Hour (12-hour clock) as a zero-padded decimal number.

01, 02, …, 12

(9)

%p

Locale’s equivalent of either AM or PM.
AM, PM (en_US);
am, pm (de_DE)

(1), (3)

%M

Minute as a zero-padded decimal number.

00, 01, …, 59

(9)

%S

Second as a zero-padded decimal number.

00, 01, …, 59

(4), (9)

%f

Microsecond as a decimal number, zero-padded to 6 digits.

000000, 000001, …, 999999

(5)

%z

UTC offset in the form ±HHMM[SS[.ffffff]] (empty string if the object is naive).

(empty), +0000, -0400, +1030, +063415, -030712.345216

(6)

%Z

Time zone name (empty string if the object is naive).

(empty), UTC, GMT

(6)

%j

Day of the year as a zero-padded decimal number.

001, 002, …, 366

(9)

%U

Week number of the year (Sunday as the first day of the week) as a zero-padded decimal number. All days in a new year preceding the first Sunday are considered to be in week 0.

00, 01, …, 53

(7), (9)

%W

Week number of the year (Monday as the first day of the week) as a zero-padded decimal number. All days in a new year preceding the first Monday are considered to be in week 0.

00, 01, …, 53

(7), (9)

%c

Locale’s appropriate date and time representation.
Tue Aug 16 21:30:00 1988 (en_US);
Di 16 Aug 21:30:00 1988 (de_DE)

(1)

%x

Locale’s appropriate date representation.
08/16/88 (None);
08/16/1988 (en_US);
16.08.1988 (de_DE)

(1)

%X

Locale’s appropriate time representation.
21:30:00 (en_US);
21:30:00 (de_DE)

(1)