Shrenik switched on a bulb at 2:39:40 hours and switched it off on the same day at 12:30:34 hours. For how long was the bulb in switched-on mode?
1
09 hours 50 minutes 54 seconds
2
12 hours 40 minutes 06 seconds
3
09 hours 09 minutes 06 seconds
4
10 hours 09 minutes 06 seconds