Changing base date?

  • Thread starter Thread starter Aaron Bratcher
  • Start date Start date
A

Aaron Bratcher

I was copying data from an opened CSV into a template and noticed that
the all of the dates were wrong!

I changed the numeric format to general in both windows to see if the
base number was the same. They were

I then changed the number to 0 then formatted it as a date and saw one
spreadsheet format the zero as "1/0/1900" and the other spreadsheet
formatted the zero as "1/1/1904"

What gives?


Thanks.
 
One computer is using the 1904 date system under tools>options>calculations


Regards,

Peo Sjoblom
 
Saved from a previous post:

One workbook was using a base year of 1900 and the other was using 1904.
(tools|options|calculation tab|1904 date system)

One way to add those four years back is to find an empty cell, put 1462 into
that cell.

Copy that cell.

Select your range that contains the dates. Edit|PasteSpecial|click Add (in the
operation box).

You may have to reformat the cell as a date (mine turned to a 5 digit number).
But it should work.

You may want to do it against a copy...just in case.

(I'm not sure which one you'll fix. You may want to edit|pastespecial|click
subtract.)

Most windows users use 1900 as the base date. Mac users (mostly??) use 1904 as
the base date.
 
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