Tcl/Tk in a Nutshell

Name

timestamp

timestamp [options]

Return a timestamp. With no arguments, returns the number of seconds since the start of the epoch.

Options

-format format-string

Return time formatted using a format string. The string follows the format of the POSIX strftime function, as described below. This command is deprecated; use the Tcl clock command instead.

-seconds source

Return a timestamp based on the time source, expressed as a number of seconds since the start of the epoch.

-gmt

Use Greenwitch Mean Time (UTC) rather than the local time zone.

Format Strings

%a	Abbreviated weekday name
%A	Full weekday name
%b	Abbreviated month name
%B	Full month name
%c	Date and time, as in Wed Oct 6 11:45:56 1993
%d	Day of the month (01–31)
%H	Hour (00–23)
%I	Hour (01–12)
%j	Day (001–366)
%m	Month (01–12)
%M	Minute (00–59)
%p	A.M. or P.M.
%S	Second (00–61)
%u	Day (1–7, Monday is first day of week)
%U	Week (00–53, first Sunday is first day of week one)
%V	Week (01–53, ISO 8601 style)
%w	Day (0–6)
%W	Week (00–53, first Monday is first day of week one)
%x	Date and time, as in Wed Oct 6 1993
%X	Time, as in 23:59:59
%y	Year (00–99)
%Y	Year, as in 1993
%Z	Time zone (or nothing if not determinable)
%%	A bare percent sign