8.5 hours
This would be 6.5 hours.
6.5 hours (6 hours 30 minutes) between 10am and 4:30pm
(9 + 12k) hours where k is an integer.
(8.5+24k) hours where k is an integer.
Afternoon.
3 hours.
15 hours.
8 hours.
This would be 6.5 hours.
6 and 1/2
5-1/2
6.5 hours (6 hours 30 minutes) between 10am and 4:30pm
438
There are 21.5 + 24k hours, where k is an integer.
From 8:30 AM to 4:30 PM is a total of 8 hours. Subtracting the 40-minute lunch break, the total working time is 7 hours and 20 minutes.
33 days and 8 hours.
There is no exact answer in which how many hours you drive in 800 kilometres because it really is depending on how fast or slow you're travelling.