New Column with Time Scaled Values

[naeemdotcom]

Hi All,

In Excel 2007 sheet i have a column whose type is text. It contains date time stamp in chronological order but the difference of time between two adjacent rows is not same. What i mean is this:

Row1: 2011-01-21 09:17:33.0
Row2: 2011-01-21 09:18:33.0
Row3: 2011-01-21 09:27:33.0
Row4: 2011-01-21 09:29:33.0
Row5: 2011-01-21 09:33:33.0
Row6: 2011-01-21 09:38:33.0
Row7: 2011-01-21 09:47:33.0
Row8: 2011-01-21 09:51:33.0
Row9: 2011-01-21 09:60:33.0
Row10: 2011-01-21 09:66:33.0
....
...

The time difference between Row1 value and Row2 value is approx. 1min.
The time difference between Row2 value and Row3 value is approx. 9min.
The time difference between Row3 value and Row4 value is approx. 2min.
The time difference between Row4 value and Row5 value is approx. 4min.
so on...

Now i want a new coulmn that has following values in its rows:

Row1: 0
Row2: 1
Row3: 10
Row4: 12
Row5: 16
so on...

As you can see the values add-up in every next row.

Can anyone guide me how it can be done? Any help would be great.

-naeemdotcom

[arthurbr]

Something like =A1-$A$1 and pull down and format as needed

[naeemdotcom]

No it dont work, since the column values are time,date values.

[arthurbr]

Works for me - see attached

EDIT file attached

[naeemdotcom]

oop,, Looks like you forgot to upload the attachment.

[naeemdotcom]

could not see any attachement with the post.

[arthurbr]

See post #4