It's approximately two months and three days based on a 30-day month.
24 hours in a day X 30 days = 720 hours.
1500 hrs divided by 720 hrs = 2 months and 60 hours or 2 months plus 2.5 days.
24 hours in a day X 30 days = 720 hours.
1500 hrs divided by 720 hrs = 2 months and 60 hours or 2 months plus 2.5 days.