The Ishikari River is 268 km in length.
268/C hours
6.72 minutes.
1hour and 57 minutes
355 km is about 220.5 miles.
3 hours 34 minutes.
It takes 0.41667 hours or 25 minutes to drive 50 km if you drive 120 kilometres per hour.
A drive of 1400 km would take about 10.7692038 hours at a rate of 130 km/h,
At 60 MPH average, about 4 1/2 hours.
2,270 km
2 hours, 10 minutes, 30 seconds
268 km