System currently in daylight saving mode

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Jack B. Pollack - 30 Jun 2007 17:04 GMT

Is there an easy way to determine if the system time is in "daylight saving"
mode or "normal" mode?

Perhaps using GetTimeZoneInformation or GetTimeFormat API.

Code snipit or example would be appreciated.

Thanks

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MikeD - 30 Jun 2007 17:21 GMT

> Is there an easy way to determine if the system time is in "daylight
> saving"
[quoted text clipped - 3 lines]
>
> Code snipit or example would be appreciated.

Have you tried either of these, particularly GetTimeZoneInformation? You
already figured out what function to use so either you haven't made any
attempt to write the code (for whatever reason, I hope not just due to
laziness) or you've tried and are having difficulties.

It's generally expected for you to at least attempt to write the code
yourself and then come here if you run into problems. Give it a shot, and if
it doesn't "work", post a message explaining what's not "working" (don't
just say "it doesn't work" because that tells us nothing) and include your
code (copied and pasted from VB).

Signature

Mike
Microsoft MVP Visual Basic

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Jack B. Pollack - 30 Jun 2007 17:50 GMT

> > Is there an easy way to determine if the system time is in "daylight
> > saving"
[quoted text clipped - 18 lines]
> Mike
> Microsoft MVP Visual Basic

Hi,

I'm new to this and not even sure how to create a "TimeZone structure" or
how to retrieve the info from the structure.

Thanks

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Jack B. Pollack - 30 Jun 2007 19:28 GMT

> Is there an easy way to determine if the system time is in "daylight saving"
> mode or "normal" mode?
[quoted text clipped - 4 lines]
>
> Thanks

Never mind. Found sample here:
http://vbnet.mvps.org/index.html?code/locale/gettimezoneinfo.htm

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VB Forum / Win API / June 2007

System currently in daylight saving mode