日期格式符

%a

Abbreviated weekday name (Sun .. Sat)

%b

Abbreviated month name (Jan .. Dec)

%c

Month, numeric (1 .. 12)

%D

Day of the month with English suffix (0th, 1st, 2nd, 3rd, …​)

%d

Day of the month, numeric (01 .. 31)

%e

Day of the month, numeric (1 .. 31)

%f

Fraction of second (6 digits for printing: 000000 .. 999000; 1 - 9 digits for parsing: 0 .. 999999999) (Timestamp is truncated to milliseconds.)

%H

Hour (00 .. 23)

%h

Hour (00 .. 23)

%I

Hour (00 .. 23)

%i

Minutes, numeric (00 .. 59)

%j

Day of year (001 .. 366)

%k

Hour (0 .. 23)

%l

Hour (1 .. 12)

%M

Month name (January .. December)

%m

Month, numeric (01 .. 12)

%p

AM or PM

%r

Time, 12-hour (hh:mm:ss followed by AM or PM)

%S

Seconds (00 .. 59)

%s

Seconds (00 .. 59)

%T

Time, 24-hour (hh:mm:ss)

%U

Week (00 .. 53), where Sunday is the first day of the week

%u

Week (00 .. 53), where Monday is the first day of the week

%V

Week (01 .. 53), where Sunday is the first day of the week; used with %X

%v

Week (01 .. 53), where Monday is the first day of the week; used with %x

%W

Weekday name (Sunday .. Saturday)

%w

Day of the week (0 .. 6), where Sunday is the first day of the week

%X

Year for the week where Sunday is the first day of the week, numeric, four digits; used with %V

%x

Year for the week, where Monday is the first day of the week, numeric, four digits; used with %v

%Y

Year, numeric, four digits

%y

Year, numeric (two digits)

%%

A literal % character

%x

x, for any x not listed above