This function converts a time as returned by the time function to a 9-element list with the time correct for the Greenwich time zone (aka GMT, or UTC, or even Zulu in certain cultures, not including the Zulu culture, oddly enough). Typically used as follows:
($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = gmtime(time);
All list elements are numeric, and come straight out of a
$london_month = (qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec))[(gmtime)];
The Perl library module Time::Local contains a subroutine,
In scalar context, gmtime returns a ctime (3)-like string based on the GMT time value.