Days in a month

[helpforwork]

Is there a formula that can populate how many days there are in a month? i.e.
31 days in January, 28 days in February, and so on

 

[Jacob Skaria]

With a date in cell A1 try the below formula
=DAY(DATE(YEAR(A1),MONTH(A1)+1,0))

If this post helps click Yes

 

[T. Valko]

If you have a date in a cell:

=DAY(EOMONTH(A1,0))

The EOMONTH function requires the Analysis ToolPak add-in be installed in
Excel versions prior to Excel 2007. If you
enter the formula and get a #NAME? error look in Excel help for the EOMONTH
function. It'll tell you how to fix the problem.

 

[Ron Rosenfeld]

Is there a formula that can populate how many days there are in a month? i.e.
31 days in January, 28 days in February, and so on

With some date in A1:

=DAY(A1-DAY(A1)+32-DAY(A1-DAY(A1)+32))

Format result as General, or Number
--ron