About 1 hour 7 minutes at the average human walking speed of 9km/h
Around 8 minutes it takes to walk 0.8 km
it depends on your walking speed.
A long time.
About 10 hours at the average human walking speed of 9km/h
You can walk 1 km in 6 minutes if you can walk a mile in 10 minutes.
about 50 mintues
Depends on how fast you walk.
2 km = 1.2 miles. At a normal pace it should take about 20-25 minutes to walk that far.
For a normally fit and heathly person, about 10 minutes - you should be able to walk 3km in an hour, 1km in 20 minutes and so half a KM in about 10. If it's raining probably longer though
approximately 16 hrs(with assumption you're talking breakfast, lunch and dinner plus 10 minute breaks after every hour into account.)
If you walk with the speed of 6 km per hour then it will take 25 minutes
half a second if you walk fast