6.6 hours (from 10:11 to 16:47)
5.9 hours (from 10:30 to 16:29)
5.5 hours (from 10:52 to 16:28)
7.1 hours (from 9:12 to 16:19)
7.6 hours (from 9:28 to 17:11)
6.7 hours (from 9:31 to 16:18)
6.6 hours (from 10-15 to 16-54)