How can I subtract two cells that have a 12-hour time format and return a
value of toal hours within this range in decimal form such as 8.3 hours?

You simply have to subtract the tow numbers =A1-B1. but there are two caveots

1) the resulting cell has to be formated as a number not as time. the
reusults is not a serial time number in excel
2) the difference is a fraction of a day where 1 equals 24 hours. To get
hours simply multiply by 24.

example
11:00 - 3:00 = .333333 (8 / 24)

24 * .3333333 = 24 * 8/24 = 8.0

"Troy2006" wrote:

How can I subtract two cells that have a 12-hour time format and return a
value of toal hours within this range in decimal form such as 8.3 hours?

Try this:

=MOD(B1-A1,1)*24

Format as GENERAL or NUMBER

--
Biff
Microsoft Excel MVP


"Troy2006" wrote in message
...
How can I subtract two cells that have a 12-hour time format and return a
value of toal hours within this range in decimal form such as 8.3 hours?

Times are stored as fractional days, so the display format doesn't
matter in calculations. That also means to convert times to integer
hours, multiply by 24.

One way:

=ROUND(MOD(B1-A1,1)*24,1)

In article ,
Troy2006 wrote:

How can I subtract two cells that have a 12-hour time format and return a
value of toal hours within this range in decimal form such as 8.3 hours?