And how would we indicate daylight savings time in relation to that time
zone?

Subtract one hour, unless you live in Arizona or El Paso. Arizona and, I
believe, El Paso don't switch to daylight saving time. There may be local
exceptions in Arizona. (I think Ohio or some other statedoesn't switch, either.
But you said Mountain Time.)

Broadcasters usually stay with the clock, thusSW schedule UTC times will shift
an hour around the time of the zone time switches.

In my location, CDT is 5 hours behind UTC, i.e., 1200 here is 1700 UTC. During
CST, there is a 6 hour difference.

Oh, and the UTC day starts at 0000 just as a local day does. 2200 CDT Monday
will equal 0300 UTC Tuesday.

Bill, K5BY
SE Texas