You can use the code as below: 
use DateTime;
my $source = DateTime->new(year => 2007, 
                           month  => 7,  
                           day => 2, 
                           hour => 13,   
                           minute => 55, 
                        time_zone => 'America/Los_Angeles');
my $result = $source->clone()
                    ->set_time_zone('Asia/Calcutta');
print $source->strftime("%F %r %Z"), "will become ", 
      $result->strftime("%F %r %Z");

[download]
Output: 2007-07-02 01:55:00 PM PDT will become 2007-07-03 02:25:00 AM IST

In reply to Re: Timezone PST to IST by santhi
in thread Timezone PST to IST by jai_dgl

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