Assuming the 10 months each have 30 days:10 months=300 days=7200 hours=432,000 minutes=25,920,000 seconds
1,350 hours = about 1.85 months (1.84808875 months)
8,000 hours = about 11 months (10.9516371 months)
1,200 hours is ~1.642746 months.
250 hours = about 0.34 months.
10 months = 7 304.84398 hours
For that degree of precision you need to identify which months.
Assuming the 10 months each have 30 days:10 months=300 days=7200 hours=432,000 minutes=25,920,000 seconds
1,350 hours = about 1.85 months (1.84808875 months)
8,000 hours = about 11 months (10.9516371 months)
855 hours is ~1.17046 months.
1,200 hours is ~1.642746 months.
500 hours = 0.684477316 months
250 hours = about 0.34 months.
600 hours = 0.82 months.
480 hours is about 0.657098 months.
1065 hours = 1.46 months