Re: Finding the offset of a specific time zone

 
Thanks Peter. Please note that your solution only works on .NET 3.5.
TimeZoneInfo is not available for previous versions. This is why I have all
these issues. Our server environment only has .NET 3.0.

For versions prior to 3.5, one needs a similar class. One such class
(written in VB) can be found here:

http://www.codeproject.com/KB/vb/TimeZoneInfo.aspx

Regards,
Eddie



-----Original Message-----
From: Discussion of advanced .NET topics.
[mailto:[email protected]] On Behalf Of Peter Ritchie
Sent: Wednesday, March 25, 2009 1:12 PM
To: [email protected]
Subject: Re: [ADVANCED-DOTNET] Finding the offset of a specific time zone

Yes, you'll have to make an assumption about the timezone of the time stamp
if it's not coming in as UTC (I deal with "field devices" and they send UTC
times...).

You can do what you want with something like:
            DateTime datetime = new DateTime(1968, 11, 5, 12, 0, 0);
            DateTime utcDateTime = TimeZoneInfo.ConvertTimeToUtc(datetime,
TimeZoneInfo.FindSystemTimeZoneById("Pacific Standard Time"));
            // TODO: persist utcDateTime somwhere.

For future readers, convert back to local time to display in the application
like this:

            DateTime localDateTime = utcDateTime.ToLocalTime();

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