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MS Office Forum / Excel / New Users / March 2008

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Calculating Hours and minutes

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Nick - 25 Mar 2008 12:56 GMT
I am needing to calculate how long an item was used for using hours and
minutes.
Is there a formula or format that will let me do this.
The total will go into thousands of hours.
And i cannot have days or seconds, must only be hours and minutes in my
spreadsheet.

Can anyone help
Mike H - 25 Mar 2008 13:22 GMT
Hi,

=B1-A1
format as [hh]:mm

earlier date and time In A1

Mike

> I am needing to calculate how long an item was used for using hours and
> minutes.
[quoted text clipped - 4 lines]
>
> Can anyone help
Nick - 25 Mar 2008 13:36 GMT
actually i am trying to count hours by adding an amount to my total every 7
days. it started at 0 and is now 200hrs and 30 mins. i want to add how long
it was used onto this total every week.
It wont let me calculate over say 1000hours

> Hi,
>
[quoted text clipped - 13 lines]
> >
> > Can anyone help
Mike H - 25 Mar 2008 14:00 GMT
There's no need for another thread, If someone knows the answer you'll get it
in the first one.
> It wont let me calculate over say 1000hours
What does this mean with cells formatted as [hh]:mm I can add up hours in
excess of 1000. What formula are you using?

As an example all formatted as [hh]:mm

a1=1100:58
b1=900:24
c1=A1+b1 gives an answer of 2001:22

Mike

> actually i am trying to count hours by adding an amount to my total every 7
> days. it started at 0 and is now 200hrs and 30 mins. i want to add how long
[quoted text clipped - 18 lines]
> > >
> > > Can anyone help
Nick - 25 Mar 2008 15:03 GMT
sry i meant 10,000:00
this is what i have
 time ran    total time ran
     A           B
1    9975:30
2  57:60    00:00     - this is what it calculates to!

it wont let me calculate over 4 figures in hrs and returns the value to zero.
i am using format [hh]:mm and formula is =SUM(B1,A2)

> There's no need for another thread, If someone knows the answer you'll get it
> in the first one.
[quoted text clipped - 32 lines]
> > > >
> > > > Can anyone help
Mike H - 25 Mar 2008 15:49 GMT
Nick,

Now I understand you've encountered this
http://support.microsoft.com/kb/214386

However, I still don't see your problem because all this means is you cant
enter 10000 hours in a cell but you can sum 2 cells to a total in excess of
that

Mike

> sry i meant 10,000:00
> this is what i have
[quoted text clipped - 42 lines]
> > > > >
> > > > > Can anyone help

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