How can I create a time zone neutral calendar?

Hi folks,

I have a particular problem that's been bugging me lately: my calendar is all screwed up. I live in the Central Time Zone, but often travel back to the Eastern Time Zone. The problem I have is pretty simple: when I schedule things in my calendar, I schedule them for the time I need to be there.

The most recent example: while on the road, I had a referral finally come through. So I made the appointment when I received the call, and the appointment was obviously back home. I entered it for 10 am, but when I traveled back home, my calendar displayed it as 9 am. I caught it this time, but that was a first.

Maybe this is a helpful feature for others, but I find that I never need it. I am always scheduling things for local time. I can't even imagine a scenario where I'd need a feature like this -- I'm sure they exist, but not for me.

I can't tell if this is an iOS feature, a Google Calendar feature (I sync my Google Calendar with Calendar.app on iOS, although I pretty much add and edit appointments on iOS) or a conflict created between the two.

If anyone has ideas on how to handle this, I'd appreciate it.