# I need help with a formula calculating time

1. ## I need help with a formula calculating time

I have a simple spreadsheet calculating the hours worked by a person, In the
columns i have start time, end time and hours worked. The columns are
formatted into hh:mm. The hours worked are calculated by subtracting end
time from start time, based on 24hour clock. This works fine if the hours are
worked on the same day, but if the person starts at 18:00 and finishes at
02:00 the subtraction doesnt work.

If however i change the formatting of the cells to dd/mm/yyyy hh:mm this
will work as the date helps. But i feel this would be too much info to enter
for each person if i have over 100 people on the spreadsheet.

Is there an easier way around this either by changing the original formula
or maybe by entering the date once on a sperate cell and only entering the
times in the rows for each person.

Thanx
Mark

2. ## Re: I need help with a formula calculating time

Hi Marx,

=IF(B1>A1,B1-A1,B1+1-A1)

--

Kind Regards,

Niek Otten

Microsoft MVP - Excel

"Mark" <Mark@discussions.microsoft.com> wrote in message
news:255E9394-4B5D-4B18-ACE1-3DA8E5838F74@microsoft.com...
>I have a simple spreadsheet calculating the hours worked by a person, In
>the
> columns i have start time, end time and hours worked. The columns are
> formatted into hh:mm. The hours worked are calculated by subtracting end
> time from start time, based on 24hour clock. This works fine if the hours
> are
> worked on the same day, but if the person starts at 18:00 and finishes at
> 02:00 the subtraction doesnt work.
>
> If however i change the formatting of the cells to dd/mm/yyyy hh:mm this
> will work as the date helps. But i feel this would be too much info to
> enter
> for each person if i have over 100 people on the spreadsheet.
>
> Is there an easier way around this either by changing the original formula
> or maybe by entering the date once on a sperate cell and only entering the
> times in the rows for each person.
>
> Thanx
> Mark

3. ## Re: I need help with a formula calculating time

"Mark" <Mark@discussions.microsoft.com>ha scritto nel messaggio
255E9394-4B5D-4B18-ACE1-3DA8E5838F74@microsoft.com

> I have a simple spreadsheet calculating the hours worked by a person,
> In the columns i have start time, end time and hours worked. The
> columns are formatted into hh:mm. The hours worked are calculated by
> subtracting end time from start time, based on 24hour clock. This
> works fine if the hours are worked on the same day, but if the person
> starts at 18:00 and finishes at 02:00 the subtraction doesnt work.
>
> If however i change the formatting of the cells to dd/mm/yyyy hh:mm
> this will work as the date helps. But i feel this would be too much
> info to enter for each person if i have over 100 people on the
>
> Is there an easier way around this either by changing the original
> formula or maybe by entering the date once on a sperate cell and only
> entering the times in the rows for each person.
>
> Thanx
> Mark

Check out Chip Pearson's site
http://www.cpearson.com/excel/overtime.htm
http://www.cpearson.com/excel/DateTimeEntry.htm

--
Franz

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To reply translate from italian InVento (no capital letters)
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