earth rotates 1 degree every four minutes. this makes one minute equal 1/4 degree of earth rotation. 4 min = 1 degree. 8 min = 2 degrees...12 minutes=3 degrees...in order to get to 15 after the hour you need three more minutes at 1/4 degree per minute or 15 minutes equals 3.75 degrees of earth rotation. 15 minute of the clock is 90 degrees. 15 after = 90 degrees 30 after = 180 degrees or 7.5 degrees of earth rotation. 45 minutes after the hour = 270 degrees on the clock and 11.25 degrees of earth rotation. all the way around the clock...60 minutes of time on the clock is 15 degrees of earth rotation.

3.75 degrees=15 minutes on the clock, 7.5 degrees= 30 minutes on the clock, 11.25 degrees= 45 minutes on the clock, 15 degrees= 60 minutes on the clock.

Longitude lines on the globe are set at 15 degrees or one hour of time. there are 24 of them to get around the globe or a day.

If you extrapolate out to days and use 3.75 days times 24 hours per day you get 90 hours. The same number of degrees as 3.75 degrees of rotation gives you on the clock the same as 15 minutes is 90 degrees. 7.5 days equals 30 minutes past on the clock or 180 degrees. 7.5 days times 24 hours gives 180 hours. 11.25 days gives 270...15 days= 360 hours.

12 day dump is a part of the 11.25 because 11.25 lies between 11 and 12 days. I say, possibly.