7am to 7pm is 12 hours 7pm to 11pm is 4 hours Add 12 and 4 and you will have the answer
i think 3 hours
There are 2+12k hours where k is an integer.
9
It is 16 hours.
12pm to 7pm is a span of 7 hours.
48 + 168k hours, where k is an integer.
16 hours
6 hours
11 hours
10
3 hours and 15 minutes
2 hours, so say it is 5 pm in England, in Greece, it will be 7pm.
4 hrs
6
From 3:45am to 7pm is 15 hours and 15 minutes. From 3:45pm to 7pm is 3 hours and 15 minutes.
There are 10+24k hours where k is any integer.