Convert Julian Date to a Calendar Date in Microsoft Excel

In this article you’ll learn, how to convert a Julian date to a calendar date.

What is Julian date?

Julian date calendar was introduced by Julius Caesar. The length of Julian date is 5, in which first 2 digits represt the year and last 3 digits represent the day of the year.

For example:-

1^st January 2008, Julian date 08001. Where “08” being the year and “001” being the date

To convert the Julian date format to a calendar date, we use IF, LEFT and MOD function in Microsoft Excel.

Let’s take an example,

In Column A we have Julian date and in column B we want to convert Julian date into calendar date.

Follow below given steps:-

Enter the formula in cell B2
=("1/1/"&(IF(LEFT(A2,2)*1<20,2000,1900)+LEFT(A2,2)))+MOD(A2,1000)-1
Press Enter
The function will convert the Julian date format in to Calendar date

Copy the same formula by pressing the key Ctrl+C and paste in the range B3:B10 by pressing the key Ctrl+V on your keyboard

Formula Explanation:-

(IF(LEFT(A2,2)*1<20,2000,1900)+LEFT(A2,2))) :- This part of formula will help to get the year
MOD(A2,1000) :- This part of formula will help to get the number of days
By using rest part formula will calculate the date as number, because excel has stored the date as numbers.

In this way, we can convert the Julian date to a calendar date in Microsoft Excel.

Important Note:- To convert the 4 digit’s Julian date into calendar date we have to convert Julian date into text format.

Take a look at the below example,

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