As the Big Ben said to the leaning Tower of Pisa, "I've got the time, if you've got the inclination."
Do you REALLY not know how to derive time from distance and speed? Or how to look up a book to find the conversion factors?
Or just too bone lazy, just ask it here and somebody will do the work for you?
Time = distance/speed. Thirty miles divided by thirty knots equals one hour.
Look up the rest yourself, or just wait. It will come.
