About 3.5 hours.
4 hours, 5 hours tops.
It takes about 24 hours to reach the center of Montana from Dallas, Tx.
around about 13 to 14 hours
4 hours
20 to 21 hours
13 hours and 57 minutes
approximately 3 and a half hours
it is about 10 hours
8 hours
6 hours
3 hours