WEEKNUMBER showing wrong week number?
I am using =(WEEKNUMBER([Start Date]@row) and have a start date of 01/02/21  it is returning a week number of 53? Help! :)
Best Answer

Odd that it’s resulting in 53, it should be 52 since that date is technically in the last week of 2020 based on how the function works.
Also you have an extra set of (), but I doubt this would cause a problem.
=WEEKNUMBER([Start Date]@row)
Answers

WEEKNUMBER Usage Notes
 Smartsheet calculates week numbers based on Mondays. Due to this, the first day of the year may not be in the first week of the year. For example, if January 1st is a Monday, WEEKNUMBER returns 1, however if it’s a Friday, WEEKNUMBER returns 52.

Odd that it’s resulting in 53, it should be 52 since that date is technically in the last week of 2020 based on how the function works.
Also you have an extra set of (), but I doubt this would cause a problem.
=WEEKNUMBER([Start Date]@row)

Thank you!
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