Lunar calendar or crescent moons and others employing detailed calculations. Since each lunation is approximately days (29 days, 12 hours, 44 minutes, 3 seconds, or days), it is common for the months of a lunar calendar to alternate between 29 and 30 days. Since the period of twelve such lunations, a lunar year, is only 354 days, 8 hours, 48 minutes, 34 seconds ( days), purely lunar calendars lose around 11 days per year relative to the Gregorian calendar. In purely lunar calendars like the Islamic calendar, the lack of intercalation causes the lunar months to cycle through all the seasons of
Stanley Miles a cycle shop in Victoria Street and customised both road and track frames. Throughout 1935 Miles competed in 15 events, winning four and finishing third seven times. His victory tally included: the "Anerley '12' hour" with a record distance of 239¼ miles; the "Brighton Mitre '50' mile" in 2 hours, 7 minutes 3 seconds; the "Highgate '100' mile" in 4 hours 34 minutes 25 seconds; and the "Ealing '50' miles" in 2 hours 7 minutes 3 seconds. These achievements meant that he won the title of Best All-rounder with an average speed of 21.809 mph, the second fastest ever achieved