How to write query to Convert From EST to GMT Time considering day light savings?
Ex: EasternTime is 2010-02-13 11:30:55.293
If this falls in day light savings, it should be 2010-02-13 15:30:55.293
otherwise it should be 2010-02-13 16:30:55.293
Please help
In your current conditions, you can’t do a reverse conversion to UTC cleanly, since there is already ambiguous time entries present (then time is switching back in time).
Other than that, you will need SQL CLR function for such conversion, since SQL server have no access to time zone data AFAIK. You should use TimeZoneInfo class for your task.