GMT Time Conversion

Is there an easy method for GMT time conversion to Pacific time (UTC to PST [-19 Hrs])?. A simple no will do quite nicely. My searches so far have come up empty. I am having some small issues but I think I can create an Enum table fairly easily. My concern is to hopefully fit a bunch of sketches converted to functions and called as required so each "module must be quite short if it is to fit in the smaller board program space.

Doc

Depends on what format the time value is in.

GMT time conversion to Pacific time (UTC to PST [-19 Hrs])

GMT to PST is -8 hours. I'm in the CST zone which is GMT-6 so PST is two more hours behind that.

Pete