Timezone conversion has been covered in
this issue of the
2007 Perl Advent Calendar some days ago. I don't know if it contains a solution for you, but it's probably worth investigating.
Hey! Up to Dec 16, 2007 I was named frodo72, take note of the change! Flavio
perl -ple'$_=reverse' <<<ti.xittelop@oivalf
Io ho capito... ma tu che hai detto?