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JD
 
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Default Adding/Averaging Times in Excel

I'm trying to work with time. I'll be adding and averaging many different
process times for a business project. How do I format these times and write
a formula. The tricky part is the times are all the way to milliseconds.
The format is 00:00:00:00 in hh:mm:ss:ms. Say I have 00:05:55:78 and
00:04:34:98. How do I add these and then also get an average of the two??
I've been stuck with this problem for a while. Version 2003 Excel.
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JE McGimpsey
 
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Are you sure you're last digits are milliseconds (thousandths a second)
or are they hundredths of a second?

If the latter:

B1: =LEFT(A1,8)+LEFT(A2,8)+(RIGHT(A1,2)+RIGHT(A2,2))/8640000

if you format the result as hh:mm:ss.00 will return 00:10:30.76.

The average:

B2: =B1/2


In article ,
"JD" wrote:

I'm trying to work with time. I'll be adding and averaging many different
process times for a business project. How do I format these times and write
a formula. The tricky part is the times are all the way to milliseconds.
The format is 00:00:00:00 in hh:mm:ss:ms. Say I have 00:05:55:78 and
00:04:34:98. How do I add these and then also get an average of the two??
I've been stuck with this problem for a while. Version 2003 Excel.

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JD
 
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Thanks--one more thing. If I am adding more times in, how do I drag the
formula to include the new cells. I tried it, and it just keeps two cells
instead of adding the third one. I don't want to have to type in ...Left
A1,A2,A3, etc. for every new cell. Sorry I'm a novice.

"JE McGimpsey" wrote:

Are you sure you're last digits are milliseconds (thousandths a second)
or are they hundredths of a second?

If the latter:

B1: =LEFT(A1,8)+LEFT(A2,8)+(RIGHT(A1,2)+RIGHT(A2,2))/8640000

if you format the result as hh:mm:ss.00 will return 00:10:30.76.

The average:

B2: =B1/2


In article ,
"JD" wrote:

I'm trying to work with time. I'll be adding and averaging many different
process times for a business project. How do I format these times and write
a formula. The tricky part is the times are all the way to milliseconds.
The format is 00:00:00:00 in hh:mm:ss:ms. Say I have 00:05:55:78 and
00:04:34:98. How do I add these and then also get an average of the two??
I've been stuck with this problem for a while. Version 2003 Excel.


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