Calculating hours

[Ian]

Hi
I need to do a sheet where I put in a time, 7:15 for example in a cell. In
another cell I would enter 11:30 for example. The difference in time is 4.25
hours. What formula would I use to get this answer?
Thanks for any help

 

[Pete_UK]

Assume the start time is in A1 and the finish time in B1, both in
Excel time format, put this formula in C1:

=(B1-A1)*24

Format C1 as a number with 2 dp.

Hope this helps.

Pete

 

[Ian]

Thanks Pete

I'll try that
Cheers
Ian

Assume the start time is in A1 and the finish time in B1, both in
Excel time format, put this formula in C1:

=(B1-A1)*24

Format C1 as a number with 2 dp.

Hope this helps.

Pete

 

[Pete_UK]

You're welcome, Ian.

Pete

Thanks Pete

I'll try that
Cheers
Ian

 

[Guest]

If you don't want to have to worry about changeing the formatting manually,
you could also try:

C1=VALUE(TEXT(((B1-A1)*24),"0.00"))

Where B1="11:30" and A1="7:15"

Thanks,
Mike

 

[David Biddulph]

Sorry, but I'm confused, Mike. There's obviously some subtlety that has
escaped me. Why have you used TEXT to convert a number to text, and then
VALUE to change it back to a number again? What was wrong with simply
=(B1-A1)*24 ?

 

[Pete_UK]

David, I think this was to force the formatting to "0.00" without
having to do it manually.

Pete

 

[David Biddulph]

I wondered that, but after the VALUE aren't you back to a number that needs
formatting if you want anything other than the default? Doesn't the default
show as 4, rather than 4.00, if you have a 4 hour difference, despite the
TEXT function?

 

[Pete_UK]

Yeah, you're right David - I've just tried it. Maybe Michael will come
back and explain his reasoning.

Pete