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Dot Net Dunk Wandering in the land of .NET

My colleague The Arch Hacker (dude, lame online name ;-), reports a supposed problem with DateTime.Now behaviour under BizTalk in that it seems to ignore daylight saving time here in the UK.

A little bit of lateral thinking and I've suggested that what it's probably doing is returning a timezone-free time. This is because BizTalk is running under a service account that does not have a user profile, hence there is no timezone information available to .NET. It is probably just using the BIOS time and treating it as universal time. In the UK, this just happens to be 1hr different to GMT, which makes it look as if it's the daylight savings time that's broken. That's just a red herring - it's actually just applying no timezone information at all.

I've not tested out this theory, but hopefully The Arch Hacker will do. .NET DateTime has a lot of hidden subtleties (mainly because it does not hold timezone information) and I strongly recommend every .NET programmer reads this MSDN article.

Posted on Monday, October 4, 2004 1:44 PM BizTalk Server , C#/.NET Development | Back to top


Comments on this post: DateTime.Now and BizTalk

# re: DateTime.Now and BizTalk
Requesting Gravatar...
hehe - lame online name eh? The moniker was duly given to me by a BizTalk guy from Microsoft UK, so it sort of stuck ;-)
Left by TAH on Oct 04, 2004 1:49 PM

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