You cannot answer this question without knowing(at least the very least) velocity
1.6 million miles
distance = speed x time. Multiply the speed of light (in miles/second in this case) by the time in seconds, to get the distance travel in miles.
At 60 miles per hour you will travel 528 feet every six seconds.
3600 seconds.
514.28 seconds.
70.32 seconds.
0.01717822s
3.72 seconds.
1 million miles
That depends a lot on the speed.
I calculate 603 million miles.
If you were to travel 4 miles at 6 knots, It would be approximately 34 minutes and 50 seconds!