The Wotch Directory

Science > Astronomy > Calendars and Timekeeping

	ACalendar.com The calendar has many options with a standard monthly interface, including sunrise, sunset, and Moon phases. http://www.acalendar.com/
	Annus Novus Decimal Calendar A proposal for a non-sectarian, culturally neutral calendar system. http://www.atlantium.org/calendaran.html
	Astro Portal - CalSKY The worldwide interactive online astronomical/space calendar and calculator - for friends of astronomy, as well as astronomers. http://www.calsky.com/
	Astronomical Time Keeping Extensive descriptions of many astronomical time keeping systems, with information on time zones and Julian day numbers. http://www.maa.mhn.de/Scholar/times.html
	Astronomy by JavaScript: Sun Calculators and More Applets related to calendars and keeping time, including sidererial time. http://www.jgiesen.de/astro/astroJS/
	Astronomy Calendar Features different views of the night sky, constellations, stars, planets, and other celestial wonders. http://www.newarkmuseum.org/planetarium/pages/astrocal.html
	Blue Moon Myths Second full moon in a month, or third full moon in a single season? http://www.infoplease.com/spot/bluemoon1.html
	Britannica.com - Clockworks: From Sundials to the Atomic Second Britannica.com explores the history of timekeeping, from sundials to cesium atomic clocks. http://www.britannica.com/clockworks
	Calendar Studies Articles on the Gregorian and Julian calendars, the ISO date format, the Julian day number system, the Maya calendar, the Goddess lunar calendar, the Liberalia Triday Calendar and C functions for date conversion; plus software for calendrical conversion. http://hermetic.nofadz.com/cal_stud.htm