The Clock We Live on

11 days 30 days ancient astronomers axis Babylonians beginning called celestial globe century Christian circle clock clock we live constellation crosses the meridian cycle Daylight Saving days long December 21 directly overhead divided Earth east eastern eclipse Egyptian Equator exactly fall farther full moon Greek Greenwich Gregorian Calendar half heavenly bodies Hebrew Hebrew calendar holidays instance January Julian Calendar June 21 Latin word meaning Leap longer Lunar Calendar Lunar Months March mark midday midnight minutes Mohammedan move Mundane named noon noonday sun North Celestial Pole North Latitude North Pole number of days Olympiad period Pole Star position Prime Meridian rise Roman rotation season Seleucid Seleucid Era September shadow shorter sidereal day Solar Calendar solar day South Pole southern horizon spinning starts sun's Sunday sundial sunrise sunset tipped Tropic of Capricorn vernal equinox watch week West Longitude winter solstice York zenith