Time zone support help: how do I enter an event and have it keep that time regardless of time zone?

I consistently enter events in one time zone, because that is just easier. I would prefer it KEEP them as entered, not revise them as I travel. IE, I live overseas and constantly travel. It is very difficult to keep track of my schedule if I must always calculate the time zones when entering or viewing events. How do I set it up to leave them as entered, even as I travel, without changing the ipAd clock to stay in one time zone?