GMTIME{"format"} -- formatted GM time

• Syntax: %GMTIME{"format"}%
• Supported variables:

  Variable:	Unit:	Example
  $seconds	seconds	59
  $minutes	minutes	59
  $hours	hours	23
  $day	day of month	31
  $wday	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 offset such as "-0700" (if set to servertime)	GMT
  $iso	ISO format timestamp	2019-12-10T08:40:11Z
  $rcs	RCS format timestamp	2019/12/10 08:40:11
  $http	E-mail & http format timestamp	Tue, 10 Dec 2019 08:40:11 GMT
  $epoch	Number of seconds since 00:00 on 1st January, 1970	1575967211

• Variables can be shortened to 3 characters
• Example: %GMTIME{"$day $month, $year - $hour:$min:$sec"}% expands to 10 Dec, 2019 - 08:40:11
• 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.
• Category: DateAndTimeVariables
• Related: DISPLAYTIME, GMTIME, REVINFO, SERVERTIME