It works on both my OpenBSD and Linux perl 5.6.1 and 5.00503. What platform are you testing on?
  
{
    local $\ = "\n";
    print scalar localtime;
    {
        local $ENV{TZ} = 'GMT';
        print scalar localtime;
    }
    print scalar localtime, ", which is right.";
}

Thu May 30 16:36:26 2002
Thu May 30 21:36:26 2002
Thu May 30 16:36:26 2002, which is right.

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   MeowChow                                   
               s aamecha.s a..a\u$&owag.print

In reply to (MeowChow) Re3: Determining Daylight Savings Time by MeowChow
in thread Determining Daylight Savings Time by Starky

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