Actually you might want to use: 

use POSIX qw( tzset )

sub localtime_in { local $ENV{TZ} = shift; tzset; localtime }

$localtime_in_EST = localtime_in( "EST" );

[download]

Otherwise you've globally change the timezone for any other calls to (gm|local)time elsewhere in your code.

And personally I've used both some variant of twiddling $ENV{TZ} like this and DateTime.

In reply to Re^2: Finding a remote time by Fletch
in thread Finding a remote time by Moron

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