gmtime EXPR
Converts a time as returned by the time function to a 9™element array
with the time localized for the Greenwich timezone. Typically used as
follows:
($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) =
gmtime(time);
All array elements are numeric, and come straight out of a struct tm.
In particular this means that $mon has the range 0..11 and $wday has
the range 0..6. If EXPR is omitted, does gmtime(time()).
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