We calculate that by converting the depart and arrive local
times to GMT times. But, to get the correct GMT offset, you have to
know the correct date. To know the correct date, you need to know if
it is the depart date or the day after. If I can determine what date
to use to get the arrive station GMT offset, I'll have it made.


You need to know which way you are counting, and how many hours you are
counting. I am thinking you start at Rome, and fly west to Calfornia. You
have a time difference of MINUS 8? hours. Sometimes this puts you on the same
day, and sometimes not. This has to do with what time it is in Rome. If
taking eight hours takes you "below zero" then it is the previous day.

Jose

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