Applications :: Breaking The Link Between ICal And The Computer's Clock?

Is there any way to decouple iCal from the computer's clock? I find the fact that if I reset the computer's clock it 'adjusts' everything in the calendar infuriating. When I try to look back at appointments from when I lived overseas a few years ago they are completely out of whack because iCal has 'fixed' all of the times by changing them to what they would have been in ET - in some cases moving them to a different day or making it look like I was attending meetings in the middle of the night.

This problem also exists going forward. I.e. if I fill in appointments before a trip, but then change the clock while I'm on the road so that, while working, I have the correct local time on my screen, iCal 'adjusts' everything in the calendar. This is not helpful.

Yes, I know I can designate a time zone for each appointment as I create it. But, again, that just makes the appointments all look strange on my calendar before I travel. In any case, it is an extra step in creating appointments which I should not have to take.

In short: I want my appointments to show in the calendar with the time I designated and for that not to change regardless of what I do to the computer's clock.