22:15 or 10:15pm the previous day.
9:45
It is: 24 hours minus 8 hours 15 minutes = 15 hours 45 minutes
15 years = 131,487.192 hours.
15 hours = 54,000 seconds.
5:15 pm.
15 hours
80% of 15 hours = 0.8 x 15 hours = 12 hours
22:15 or 10:15pm the previous day.
9:45
11 hours, 15 minutes
It is: 24 hours minus 8 hours 15 minutes = 15 hours 45 minutes
If it is 10:45am, it will be 1pm. If it is 10:45pm, it will be 1am.
15 years = 131,487.192 hours.
15 hours = 54,000 seconds.
15 hours is 900 minutes.
15 years = 131,487.2 hours.