excel - 31st of January is missing in my calendar

Question

As you can see in the screenshots the calendar is showing just 30 days of January and the day 31 is missing. when I try to add this day manually by adding a new column(AG) it works. but when i scroll to the next month which is February the column AG turns blank! and when I scroll back to January its again 30 days!

Answer 1

Because You hide Columns("C:NI") and unhide only 30 columns from column C to column AF.

Range("B3").Value equals to 1 and Range("B3").Value * 31 - 29 equals to 2. Likewise, Range("B3").Value * 31 + 1 equals to 32. So, you unhide only 30 columns (32-2)! Just change your VBA code Range("B3").Value * 31 - 29 to Range("B3").Value * 31 -28 and Range("B3").Value * 31 + 1 to Range("B3").Value * 31 + 2 :

Sub showcalendar()
   LeaveTracker.Columns("C:NJ").Hidden = True
   LeaveTracker.Range(Columns(Range("B3").Value * 31 - 28), Columns(Range("B3").Value * 31 + 2)).Hidden = False
End Sub

And one more thing, change all Column()-1 to Column()-2 in your excel formulaes. Here is your repaired workbook. Check and tell me any your ideas.