Dear all,

           Is there an API in .net framework to calculate UTC\GMT time, given a datetime & time zone as input ?
If we do a manual calculation of an UTC\ GMT time, so many parameters(like day light savings) have to be checked.
so, is there an .net api to do this?

Thanks in advance

Prince D 

For the current (i.e. the servers) time zone, you can use the System.TimeZone.CurrentTimeZone property. I'm not sure if there's any built-in support for handling arbitrary timezones, but I did find this library (not tested): http://www.crankedup.com/code/#timezone .

Svante:

I'm not sure if there's any built-in support for handling arbitrary timezones

Once you have 2.0 SP1 there is.

System.DateTimeOffset (DateTime with timezone) and  System.TimeZoneInfo have been added.

rjcox:

Once you have 2.0 SP1 there is.

System.DateTimeOffset (DateTime with timezone) and  System.TimeZoneInfo have been added.

Cool! Finally. Thank you for pointing this out.

rjcox:

Once you have 2.0 SP1 there is.

You need .Net 3.5 for that.  

It's worth upgrading for that feature alone (TimeZoneInfo)