How to convert the US time to India time..

Eastern Daylight Time isn't the name of a "full" time zone - it's "half" a time zone, effectively, always 4 hours behind UTC. (There may be proper terminology for this, but I'm not aware of it.)

Why would you want to use EDT for times which don't have daylight savings applied? If you want a custom time zone that always has the same offset to UTC, useTimeZoneInfo.CreateCustomTimeZone.

Note that if you use get the Eastern Standard timezone (TimeZoneInfo.FindSystemTimeZoneById("Eastern Standard Time")) then that will still have daylight saving time applied appropriately (i.e. during summer).

For example:

TimeZoneInfo tzi = TimeZoneInfo.FindSystemTimeZoneById("Eastern Standard Time");  // Prints True Console.WriteLine(tzi.IsDaylightSavingTime(new DateTime(2009, 6, 1))); // Prints False Console.WriteLine(tzi.IsDaylightSavingTime(new DateTime(2009, 1, 1)));

1 Reply

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Gaurav Malviya12y ago
Eastern Daylight Time isn't the name of a "full" time zone - it's "half" a time zone, effectively, always 4 hours behind UTC. (There may be proper terminology for this, but I'm not aware of it.)
Why would you want to use EDT for times which don't have daylight savings applied? If you want a custom time zone that always has the same offset to UTC, useTimeZoneInfo.CreateCustomTimeZone.
Note that if you use get the Eastern Standard timezone (TimeZoneInfo.FindSystemTimeZoneById("Eastern Standard Time")) then that will still have daylight saving time applied appropriately (i.e. during summer).
For example:
```
TimeZoneInfo tzi = TimeZoneInfo.FindSystemTimeZoneById("Eastern Standard Time");  // Prints True Console.WriteLine(tzi.IsDaylightSavingTime(new DateTime(2009, 6, 1))); // Prints False Console.WriteLine(tzi.IsDaylightSavingTime(new DateTime(2009, 1, 1)));
```