I will mark as the brainliest answer

1. 6:00, it says it's 10:00 minus 4 so it equals 6
2. 20:00, I actually don't know because it says "it's the 20 hours"
3: 5:17
4. 1:00
5. 2:00
6. 4:20
7. 12:00 A.M
8. 12:00 P.M
Hope this helps
Have a nice day :)