Obtain UTC Offset with location

Hello everyone.

I would like to know if it was possible to obtain the time difference (compared to utc time) if we have a location.

I have for example a residencyTimezone: America/Los_Angeles
I would like as a result: -8h

Is it possible? Maybe thanks to a scripted field?

Thank you for your future answers.

Otherwise is it possible to get the local time according to my residencyTimezone?