Lets say we need to get number of days for 3 months.
Given data is 1/1/2019 is the start date.
Output should be: 90
Explanation-
Jan: 31 days
Feb: 28 days
Mar:31 days
Total: 90 days
So if i specify 4 months, need to include days in April which is 30. Should be 120 now for the output.