How to convert time between timezones (UTC to EDT)?

Question

I need to have a common function to convert UTC time to EDT. I have a server in India. An application in it needs to use EDT time for all time purposes.

I am using

Answer 1

TimeZoneInfo.ConvertTimeFromUtc will have correct offset depending on the DateTime you give it. For example:

3AM UTC/11PM ET (4 hour offset):

DateTime timeSummerET = TimeZoneInfo.ConvertTimeFromUtc(Convert.ToDateTime("08/01/2019 03:00:00"), zoneET);

3AM UTC/10PM ET (5 hour offset):

DateTime timeWinterET = TimeZoneInfo.ConvertTimeFromUtc(Convert.ToDateTime("12/01/2019 03:00:00"), zoneET);