strftime()

A JavaScript port of strftime(), a function to format the date and time.

Supported conversion specifications:

Sequence	Description
%a	Abbreviated name of the day of the week.
%A	Full name of the day of the week.
%b	Abbreviated month name.
%B	Full month name.
%c	Preferred date and time (UTC) representation for the current locale.
%C	Century number (year/100) as a 2-digit integer.
%d	Day of the month as a decimal number (range 01 to 31).
%e	Day of the month as a decimal number (range 1 to 31).
%F	ISO 8601 date format (equivalent to %Y-%m-%d).
%G	ISO 8601 week-based year with century as a decimal number. The 4-digit year corresponds to the ISO week number (see %V). This has the same format and value as %Y, except that if the ISO week number belongs to the previous or next year, that year is used instead.
%g	Like %G, but without century, that is, with a 2-digit year (00-99).
%H	Hour as a decimal number using a 24-hour clock (range 00 to 23). See also %k.
%I	Hour as a decimal number using a 12-hour clock (range 01 to 12). See also %l.
%j	Day of the year as a decimal number (range 001 to 366).
%k	Hour as a decimal number using a 24-hour clock (range 0 to 23). See also %H.
%l	Hour as a decimal number using a 12-hour clock (range 1 to 12). See also %I.
%m	Month as a decimal number (range 01 to 12).
%n	Month as a decimal number (range 1 to 12).
%M	Minute as a decimal number (range 00 to 59).
%p	Either "AM" or "PM" according to the given time value. Noon is treated as "PM" and midnight as "AM".
%P	Like %p but in lowercase ("am" or "pm").
%s	Number of seconds since the Epoch, 1970-01-01 00:00:00 +0000 (UTC).
%S	Second as a decimal number (range 00 to 59).
%u	Day of the week as a decimal (range 1 to 7), Monday being 1. See also %w.
%V	ISO 8601 week number of the current year as a decimal number (range 01 to 53), where week 1 is the first week that has at least 4 days in the new year (that is, the first Thursday).
%w	Day of the week as a decimal (range 0 to 6), Sunday being 0. See also %u.
%x	Preferred date representation for the current locale without the time.
%X	Preferred time representation for the current locale without the date.
%y	Year as a decimal number without a century (range 00 to 99).
%Y	Year as a decimal number including the century.
%z	The +hhmm or -hhmm numeric timezone (that is, the hour and minute offset from UTC).
%Z	Timezone name or abbreviation.

Compatibility notes:

• %c - formatted string is slightly different
• %D - not implemented (use %m/%d/%y or %d/%m/%y)
• %e - space is not added
• %E - not implemented
• %h - not implemented (use %b)
• %k - space is not added
• %n - like %m, but no leading zero (use \n for newline)
• %O - not implemented
• %r - not implemented (use %I:%M:%S %p)
• %R - not implemented (use %H:%M)
• %t - not implemented (use \t)
• %T - not implemented (use %H:%M:%S)
• %U - not implemented
• %W - not implemented
• %+ - not implemented
• %% - not implemented (use %)