It depends on where you are on the earth and what day of the year it is.
about 10 hours
24 hours.
24 hours.
8 to 10 hours
4 hours
There are 4.9625 hours in one night on Jupiter.
10 hours
It's usually three hours on a school night.
24
12 hours of sunlight and 12 hours of darkness
10 hours
Less than 8 hours.