By: Arin

In reply to Mrrrr.

Hello MRRRR,
Thank you for your comment. If you follow the first method, we have shown you will get the week number from a date according to the calendar.
? Here, to find the week number of 4th September 2021 we used the following formula and got 1 as the week number.

=WEEKNUM(B3,1)-WEEKNUM(DATE(YEAR(B3),MONTH(B3),1),1)+1

? On the other hand, using the same formula we got 2 as the week number for 5th September 2021.

Hope you have found your solution. If you face any further problems, please share your Excel file with us at problem@exceldemy.com.
Regards
Arin Islam,
Exceldemy.