Islamic calendar lunar months begin precisely at the time of the monthly "conjunction", when the Moon is located most directly between the Earth and the Sun. The month is defined as the average duration of a revolution of the Moon around the Earth (29.53 days). By convention, months of 30 days and 29 days succeed each other, adding up over two successive months to 59 full days. This leaves only a small monthly variation of 44 minutes to account for, which adds up to a total of 24 hours (i.e., the equivalent of one full day) in 2.73 years. To settle accounts,
Charles Jarrott (racing driver) 4 minutes and 12 seconds. He later entered the "Paris–Vienna Trail" (sometimes described as the VII Grand Prix de l'A.C.F.) where he finished 23rd in the Panhard et Levassor number 8, completing the 990 km in 20 hours, 44 minutes and 12 seconds. Jarrott's greatest success was winning the 1902 "Circuit des Ardennes" in the Panhard et Levassor, completing the 6 lap, 512 km race at Bastogne in car number 8, taking 5 hours, 53 minutes 39 seconds. Jarrott had inherited the lead on lap 3 after Baron Pierre de Crawhez retired in his Mors Z. In 1903 he finished