Hi. I need help finding a formula to calculate the number of days in a month
depending on the month you choose from a drop down menu.
Example:

In cell A1 user will be ask to select a month from a drop down menu.
In cell B1 I want the number of days in the month corresponding to the month
selected in A1. So, if February is chosen on A1, then 28 (days) would appear
on B1.

I was trying to do if statements, but I keep getting an error. Is there an
easy way to do this?

Thanks
LGG