75 + 86400n where n is any integer.
5 hours and 15 minutes.
3 hours and 15 minutes
4 hours and 45 minutes.
2 hours and 30 minutes.
10 hours and 15 minutes.
6:30 am
1075
352
The interval 10:10 am to 5:00 pm is 6 hours and fifty minutes long.
It is (8.5 + 24k) hours where k is an integer.
That's nine and one quarter hours.
4:00 am