Windows boxes - no ideas.

On Un*x boxes, there are a number of files that can be used to store timezones (/etc/localtime, /etc/timezone, probably some others.)

If you're playing with timezone code I recommend you take a look at the new DateTime modules - DateTime::TimeZone in particular. Very useful stuff.

In reply to Re: How to get TZ difference? by adrianh
in thread How to get TZ difference? by dda

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