LOL. Many CREW have done more than 10,000 also, right? Why don't you just
format the result as numbers instead of as time?
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Anne Troy
www.OfficeArticles.com

"Jono" wrote in message
...
I am trying to keep a rolling total of aircraft flight hours. When the
base
hours is greater than 10000:00 excel will not add the next days total. It
seems that the base hours need to be equal to or less than 9999:00,
however
many of the aircraft have done more that 10000:00 hours
--
Jono Blowes