use DateTime;
%OurLogs = get_the_time_from_the_log_file_as_a_hash();
$here = DateTime->new( time_zone => 'America/Indiana',
                           map { $_ => $OurLogs{$_} }
                           qw( year month day hour minute second ) );
$there = $here->clone;
$there->set_time_zone('America/Los_Angeles');