How do I calculate time durations over numerous dates

[Guest]

I am trying to enter data that was collected on different dates/times and
calculate the duration of the entire data collection. How can I enter the
dates and time such that I can calculate the duration? I am using Excel 2000

 

[Bob Phillips]

If you enter them as standard time, such as 09:15:30, then just subtract
them to get the duration, and format that as time also.

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HTH

RP
(remove nothere from the email address if mailing direct)

I am trying to enter data that was collected on different dates/times and
calculate the duration of the entire data collection. How can I enter the
dates and time such that I can calculate the duration? I am using Excel

2000

 

[Guest]

I've got that, but what about including different dates? I tried formatting
the cell such that the date is also part of the entry but then I can not
subtract them.

 

[Bob Phillips]

Why not? It will still have a valid value, it just differs how you present
it.

One way would be

=INT(A2-A1)&" days, "&TEXT(MOD(A2-A1,1),"hh:mm:ss")

--

HTH

RP
(remove nothere from the email address if mailing direct)

 

[Niek Otten]

Format the result as Custom [h]:mm otherwise the sum will "tip over" each
24 hrs