I am not completely sure but this website: http://www.buffalonews.com/260/story/547081.html says that Ronald Reagans parade went over four hours long.
The parade traveled 264 feet per minute.
25mins
2 to 6 hours long.
6-8 hours
It takes 6 hours for new members and 6 hours for name updates.
It is 56 days and 6 hours.
6 hours
6 hours, sometimes 6 and 1/2 hours.
6 hours = 360 minutes or 21,600 seconds (either way)
7 hours About 6 hours
0.6 hours in minutes is 36.
6 hours 2 minutes