"I cannot install any addon module as it is going to be used in many other systems."

In addition to the advice you've already been given, you could use PAR or pp to package your script and modules it requires. See http://par.perl.org.

In reply to Re: convert UTC time to system time zone's time with perl default method by marto
in thread convert UTC time to system time zone's time with perl default method by myuser

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