day of the Week (Sun, Mon, Tue, Wed, Thu, Fri, Sat)
Thu
$dow
day of the week (Sun = 0)
2
$week
number of week in year (ISO 8601)
34
$month
short name of month
Dec
$mo
2 digit month
12
$year
4 digit year
1999
$ye
2 digit year
99
$tz
either "GMT" (if set to gmtime), or "Local" (if set to servertime)
GMT
$iso
ISO format timestamp
2012-05-21T16:03:35Z
$rcs
RCS format timestamp
2012/05/21 16:03:35
$http
E-mail & http format timestamp
Mon, 21 May 2012 16:03:35 GMT
$epoch
Number of seconds since 00:00 on 1st January, 1970
1337616215
Variables can be shortened to 3 characters
Example: %GMTIME{"$day $month, $year - $hour:$min:$sec"}% expands to 21 May, 2012 - 16:03:35
Note: When used in a template topic, this variable will be expanded when the template is used to create a new topic. See TWikiTemplates#TemplateTopicsVars for details.