Say, what exactly does time zone support do?

P. 87 of the iPhone manual

When I travel from the east coast tothe west coast, I generally don't change the time zone on my computer. It thinks it's still in New Jersey. When it comes to doing business back east, I just have to remember that I'm 3 hours behind.

Now I'm staring at "Time Zone Support".

I'm wondering, "If I turn this on and then allow my computer to know which time zone it's in, will it use Time Zone Support to "know" that everything on my Calendar that my computer was told was happening at 12 noon when it was in New Jersey will automatically be shown to me on my calendar as happening at 9 AM while I'm in California.

????

In other words does "Time Zone Support" mean that every Calendar event scheduled while the computer thinks it's in New Jersey has metadata that knows this event was scheduled while it was in New Jersey. And so with Time Zone Support enabled, and with me temporaily in California, will the computer then recalibrate all of those "New Jersey" events to show them happening at the correct California time (3 hours earlier?)

Is that What Time Zone Support does?

And, of course, when the computer is returned to New Jersey, will it automatically recalibrate all those events set originally from a New Jersey time zone perpective back to the correct (original) time on the calendar?

Is that What Time Zone Support does?

If not, what the heck does it do?

Steve Weinberg