FormatCellsCustom. In the Type box, enter something like [hh]:mm. The
square brackets tell Excel not to tip over at 24h

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Kind Regards,

Niek Otten

Microsoft MVP - Excel

"Libby" wrote in message
...
I still can't get it to work

I've got 12/12/2003 09:00 in once cell and 11/12/2003
09:00 in the other
When I take the second away from the first I get 00:00:00
when it should tell me that 24 hrs has elapsed.
:o(