Have you ever tried ABSOLUTE TIME instead of LOCAL TIME? I haven't checked lately, but I think it is something with hours or seconds from a reference date, so no 0h crossover appears. The numbers are quite high though, but as long you work with differences... (I hope I didn't confuse it with a C variable with similar function, if yes I apologize).Arne Bartels

Arne, No confusion at all Arne. :-) I think I will test the absolute time w a string to see what happens.. Think about it, ( I assume ) absolute time will only have a crossover to 0 at new years eve zulu..I wouldn't even worry about then as most likely the PIC will be in the head with a female flight attendant ( or vice versa ) testing the fold down diaper tables LOL !! :-lol :-jumpyRegards,RomanProject 737-400