1 hour = 60 minutes. You now have all the information required to work out, for yourself, the answer to this and similar questions.
2hr 4 min
Approx. 131 min.
0 hours are in 20 min an hour is 60 min
2.0667 hours.
610 min / 60 = 10.167 hours.
8 hours, 20 minutes
2 hours
5 hours, 50 minutes
320 min = 51/3 hours = 5hours 20minutes
3 hours
1.95 hours.
2 hours