I appreciate the helpful reply with information about the DateTime project. However, it doesn't seem to answer questions like:

* What are valid values for the TZ environment variable?
* Why did Date::Manip behave as I described?

I feel like you ignored my original post. :(

Sorry you feel that way, however I was trying to answer your question by offering a solution, rather than just straight answering your question.

Your question was "Does anyone know what's going on with Date::Manip?" The answer to which is 'no', see below. As to the questions in your reply:

* What are valid values for the TZ environment variable?
This is not a perl question but one which should be addressed to your operating system. However if you're looking for valid values for Date::Manip, I'd check their POD or even their source. Remember however that if you specify PDT or -0700 (assuming Date::Manip accepts these values) then you will not get any daylight savings information and the number of hours between June 30 and Dec 31 will be a multiple of 24.

* Why did Date::Manip behave as I described?
It looks like there's either a bug in D:M or it's a feature you're not using properly. I'm guessing that it's a bug because I can't make sense of it as a feature.

In reply to Re: Re: Re: setting TZ causes Date::Manip to report incorrect time by BigLug
in thread setting TZ causes Date::Manip to report incorrect time by meonkeys

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