Go to Format Cells Number tab, click the
word "Custom" and fill in Peo's suggestion on the right
under "Type:".

HTH
Jason
Atlanta, GA

-----Original Message-----
How do I do a custom format? (new to me)

Kat

"Peo Sjoblom" wrote:

What happens, if the hours go over 24 then you must
use a custom format

[hh]:mm:ss

otherwise average(range)

should and will work

Regards,

Peo Sjoblom

"katgolightly" wrote:

I have columns with data in the following formats:
Column A Column B
Column C
12/7/2004 2:00:00 PM 3:51:00 12/7/2004 5:51:00
PM

B1 being =C1-A1 and ColB being formatted to HH:MM:SS
using time value.

I then want an average of the time values in all of
ColB. Somewhere the
logic breaks if I try to do =AVG(B1:B255) though.

Kat

.