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Topia!: Science: Astronomy: Calendars and Timekeeping (37)
See Also:
Astronomical Time Keeping - Extensive descriptions of many astronomical time keeping systems, with information on time zones and Julian day numbers. Time and Date - Lots of time and date related information, such as yearly and monthly calendars, counters, countdown, and the world clock which shows the current time in cities all over the world. Time and Dates - Information on date, time, and time zones from the New York Public Library. Lunisolar Calendar - Calendar with lunations, from new moon to new moon, instead of months. Moon phase on each day. Chinese, Jewish, and Islamic months. Eclipses, meteors, planets, star charts. Christian, Pagan, Islamic, Hindu, and Jewish holidays. Blue Moon Myths - Second full moon in a month, or third full moon in a single season? Maya Calendar 2000 - The calendar was the center of Maya life and their greatest cultural achievement. To carry out their astronomical calculations they developed a sophisticated mathematical system. The Maya Calendar website is developing with the intent of providing a complete view of Maya culture. Britannica.com - Clockworks: From Sundials to the Atomic Second - Britannica.com explores the history of timekeeping, from sundials to cesium atomic clocks. 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. Indian Moons - A list of many American Indian tribe's names for months, days, and other calendar related information. LunarCal - A Perpetual Chinese Lunar Calendar - LunarCal is a 160-year perpetual Chinese Lunar Calendar for 1900 to 2060. Chinese festivals are listed and the moon phase is displayed. The Chinese Calendar - The mathematics of the Chinese calendar. Explains the rules for the Chinese calendar. The Islamic Calendar - The mathematics of the Islamic calendar in Singapore. The Difference Between the Millennium and Year 2000 - Questions and answers to satisfy the hearts of true millennium buffs. Calendars through the Ages - History and FAQs of calendars, from ancient Rome to outer space. Including Julian, Gregorian, Jewish, Islamic, Chinese, and Mayan. Annus Novus Decimal Calendar - A proposal for a non-sectarian, culturally neutral calendar system. Astronomy by JavaScript: Sun Calculators and More - Applets related to calendars and keeping time, including sidererial time. Calendrical Calculations - Published by Cambridge University Press. Gives a unified algorithmic presentation of the Gregorian, ISO, Julian, Coptic, Ethiopic, and Islamic civil calendars. Calendopaedia - The Encyclopaedia of Calendars. Month Calendar for Any Year - Create a calendar (requires JavaScript, does not work in Netscape 3). Month poetry, how the months got their names, day names in different languages, birthstones, gemstones, Roman gods and the blue moon. Millennium Mistake - Explains the difference between millenium and year 2000 as the absence of a year zero. Rosetta Calendar - An online handy tool for converting to and from the Gregorian, Julian and Jewish calendars. Astronomy Calculator - Shows moon phases, dates of next lunar eclipse and nest meteor shower and current position of the other planets. The Calendar, Leap Years and the Year 2000 - An explanation of the calendar including the origin of the day, week, month and year.
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