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jpt1228 Member
Member

Julian Date Conversion or Format

Hello, I searched and read the 2 posts about julian dating but I can't get a solution to work.

 

I can either convert the julian date column on my inventory table YYDDD into a calendar date or add a column in my date table which would convert the date to the julian date.

 

In the below example I need 17103 to be April 13 2017 or 4/13/17

 

image.pngimage.png

 

 

1 ACCEPTED SOLUTION

Accepted Solutions
Phil_Seamark Super Contributor
Super Contributor

Re: Julian Date Conversion or Format

Sorry, my mistake.

 

Please use this instead

 

Column = 
VAR myYear = 2000 + INT(DIVIDE([Julian Manufacture Date],1000))
VAR myDayOfYear = MOD([Julian Manufacture Date],1000) -1
RETURN DATE( myYear,1,1) + myDayOfYear

To learn more about DAX visit : aka.ms/practicalDAX

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14 REPLIES 14
Super User
Super User

Re: Julian Date Conversion or Format

well easier to add julian date in calendar table and set relationship on julian date between date and inventory table.

 

It can be handly to have in date table , in case you hve another table with julian dte, you don't need to convert it to date rather use julian date.





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Phil_Seamark Super Contributor
Super Contributor

Re: Julian Date Conversion or Format

Hi @jpt1228

 

THis might be close as a new calculated column

 

Column = 
VAR myYear = INT(DIVIDE([Julian Manufacture Date],1000))
VAR myDayOfYear = MOD([Julian Manufacture Date],1000) -1
RETURN DATE(Year(myYear),1,1) + myDayOfYear

julian date.png 


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jpt1228 Member
Member

Re: Julian Date Conversion or Format

@Phil_Seamark

 

Thanks - But getting an error when I add column into inventory table

 

image.png

Super User
Super User

Re: Julian Date Conversion or Format

I guess you need to add table name next to "Julian Manufacture Date"





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Phil_Seamark Super Contributor
Super Contributor

Re: Julian Date Conversion or Format

HI @jpt1228

 

I think you are missing the top line.  You need the following.

 

column = 


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jpt1228 Member
Member

Re: Julian Date Conversion or Format

@Phil_Seamark Yes, that was it - Works for the Month/Day but the year is showing 1900 not 2017

Phil_Seamark Super Contributor
Super Contributor

Re: Julian Date Conversion or Format

What is the raw format in Julian for the 1st of Jan, 1900 ?


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jpt1228 Member
Member

Re: Julian Date Conversion or Format

@Phil_Seamark

I see where the confusion came from

 

00001 would be the date code for Jan 1 and could be for both 1900 and 2000 years.

 

The first 2 numbers are the year - 11 could be 1911, 2011, 2111

The next 3 are the day of the year - 001 would always be Jan 1. - 002 would be Jan 2 etc.

 

17001 would intend to be Jan 1, 2017, but could also be Jan 1, 1917.

 

Since this is inventory I have to measure from the date of manufacture to today to calculate how old the inventory is. I was going to convert the 

Phil_Seamark Super Contributor
Super Contributor

Re: Julian Date Conversion or Format

Sorry, my mistake.

 

Please use this instead

 

Column = 
VAR myYear = 2000 + INT(DIVIDE([Julian Manufacture Date],1000))
VAR myDayOfYear = MOD([Julian Manufacture Date],1000) -1
RETURN DATE( myYear,1,1) + myDayOfYear

To learn more about DAX visit : aka.ms/practicalDAX

Proud to be a Datanaut!