To calculate the hours from 8:30 to 6:30, you can break it down into two parts: from 8:30 to 6:00 is 9.5 hours, and then from 6:00 to 6:30 is an additional 0.5 hours. In total, this amounts to 10 hours. Therefore, there are 10 hours from 8:30 to 6:30.
8.5 hours
7 hours
7.5 hours
6 hours.
Three hours
3 hours.
8 hours 15mins.
7.5 hours
4
4.5
3½
8