Ruby strftime to C / POSIX strftime.

18 of 23 fields map cleanly; 5 have no C / POSIX strftime token.

C / POSIX strftime

%Y-%m-%d %H:%M

Reference · Mon, Jan 2 2006, 3:04:05 PM MST

2006-01-02 15:04

Right now, your zone

…

Both sides render the same instant — the translation is faithful.

Ruby strftime	C / POSIX strftime	Field	Example
%Y	%Y	Four-digit year	2006
%y	%y	Two-digit year	06
%-m	no token	Month number	1
%m	%m	Month number, padded	01
%b	%b	Month name, abbreviated	Jan
%B	%B	Month name, full	January
%-d	no token	Day of month	2
%d	%d	Day of month, padded	02
%a	%a	Weekday, abbreviated	Mon
%A	%A	Weekday, full	Monday
%j	%j	Day of year	2
%V	%V	Week of year	1
%G	%G	ISO week-based year	2006
%H	%H	Hour, 24-hour clock, padded	15
%I	%I	Hour, 12-hour clock, padded	03
%p	%p	AM/PM marker	PM
%M	%M	Minute, padded	04
%S	%S	Second, padded	05
%L	no token	Fractional seconds	000
%z	%z	UTC offset, basic	-0700
%:z	no token	UTC offset, extended	-07:00
%Z	%Z	Time-zone name, short	MST
%s	no token	Unix timestamp	1136239445