Thanks Bob, But the problem is the times are on 2 separate dates e.g. finish
2/10/2008 0200 and start 3/10/2008 12.00

"Bob Phillips" wrote:

Just subtract them, =A2-A1, and format the cell as [h] (or [h]:mm if you
want the mins as well)
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HTH

Bob

"Dave08" wrote in message
...
I need to work out the amount of hours between a finish time on one day and
the start time on the next day. In some cases the start time may not be
until
2 days time.