Time::Zone -- miscellaneous timezone manipulations routines
use Time::Zone;
print tz2zone();
print tz2zone($ENV{'TZ'});
print tz2zone($ENV{'TZ'}, time());
print tz2zone($ENV{'TZ'}, undef, $isdst);
$offset = tz_local_offset();
$offset = tz_offset($TZ);This is a collection of miscellaneous timezone manipulation routines.
tz2zone() parses the TZ environment variable and returns a timezone string suitable for inclusion in date(1)-like output. It opionally takes a timezone string, a time, and a is-dst flag.
tz_local_offset() determins the offset from GMT time in seconds. It only does the calculation once.
tz_offset() determines the offset from GMT in seconds of a specified timezone.
tz_name() determines the name of the timezone based on its offset
Graham Barr <gbarr@pobox.com> David Muir Sharnoff <muir@idiom.com> Paul Foley <paul@ascent.com>