If you would be able to maintain 80 MPH all the time it would take a little less than 11 hours.
However, that is rarely possible. You'd need to refuel, bathroom breaks ASO. Then I don't know where it'd be legal to drive 80 MPH either. If it was me I'd allow for 15 hours at least.
3.8625 hours
75 minutes.
It takes one hour to drive 80 miles at 80mph.
One hour
26miles/80mph=0.325 hours or 19.5 minutes.
A little over 90 minutes
1 hour
4 hr 8 minutes.
2 hours.
1000 divided by 80 = 12.5Hrs
3 hours 32 minutes.
6 hours 55 minutes.