How do I convert dd/mm/yy date format to yyddd Julian date format

  • Thread starter Thread starter itzy bitzy
  • Start date Start date
If you are trying to get 02/08/1964 to show as 64Sat you could just change to
format of the cell to “Custom†and set it as YYDDD.

If you want to convert it to the PC serial number set the formatting to
“general†and you will get the number of days from Jan 1, 1900 and the date
(assuming you are not using the 1904 date system).

If that’s not what you are looking for give me a little more info. What is
the date in questions and what do you want it to look like as a result.

Hope that helps.

Frank
 
Hi,
with custom format, choose the range to be changed, right click on the
mouse, custom, type

yy ddd
 
Julian dates have a 2-digit year number followed by a 3-digit day
number, so they may look something like 09235, meaning the 235th day
of 2009 (century 2000 assumed for yy between 00 and 30).

Follow the link I posted for further details.

Hope this helps.

Pete
 
Here is yet another way (one function call less than the other posted
formulas)...

=RIGHT(YEAR(A1)*1000+A1-DATE(YEAR(A1),1,0),5)

And if you are willing to trade a function call for a concatenation, we can
reduce the formula by yet another function call...

=RIGHT(YEAR(A1)*1000+A1-("1/1/"&YEAR(A1))+1,5)
 
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