Sir, Kindly clarify the following.

Mr. X sanctioned 20 days Earned leave with effect from 01-01-2015. After availing of 20 days earned leave i.e from 01-01-2015 to 20-01-2015, he rejoined duty on the forenoon of 21-01-2015. In this case how many days of Island Special (D) Allowance eligible to him during his leave period ?