It takes about 2 minutes and 24 seconds at a steady 25 mph.
1 minute
Approximately half a minute.
12 MPH means you can go 12 miles in 60 minutes For running, that's a good mile - 5 minutes every 1 mile, assuming you keep that pace. For biking, 12 MPH is not that fast, but still a liesurely pace. For driving, 12 MPH would seem very slow. But that all depends where you are driving. On highways in would seem an exceptionally slow pace. But on a rustic gravel road, maybe not. It all depends on perspective.
About 163 mph
Five minutes.
1 minute 12 seconds.
20 minutes 34 seconds.
It would take approximately 2 minutes to go 1 mile at a speed of 30 mph.
6 minutes
6 minutes
90 seconds.
36 seconds.
55.4 seconds.
Four minutes.
Time = distance/Speed = 48 miles / 4 mph = 12 hours.
About nine seconds.