Hi

Thanks for the help, but I only found one solution: to put the following inside the function:

my $dt = DateTime->new(
    year      => $my_year,
    month     => $my_mon,
    day       => $my_day,
    hour      => $my_hours,
    minute    => $my_minutes,
    time_zone => 'GMT',
);
$dt->set_time_zone( $zone );
$rh = $dt->hour; #returns the adjusted hour
$rm = $dt->minute; #returns the adjusted minutes
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$zone must be declared 'local' outside the procedure. We can play actually with 2 timezones (not putting GMT but $zone2 for example). Regards. Kepler