Can we set timing for our own time-zones -- e.g. USA Eastern Daylight Saving Time

Can we set timing for our own time-zones -- e.g. USA Eastern Daylight Saving Time


My timing (the arrival time of messages) seems to be set for something like Pacific time. Can I make it show arrival in EDST (Easter Daylight Saving Time)?

You'll probably see this message as posted at about 6:54am -- but I'm posting it at 9:54am EDST.

Also am wondering if, once I do, will it automatically adjust by an hour after summer ends.