Calendars and Timekeeping (Astronomy)

Calendars and Timekeeping further on these related pages:

Archaeoastronomy@ ISO 8601 Standard@ Lunar Phases@ Sundials Sunrise and Sunset Times@

Top/Kids and Teens/School Time/Science/Astronomy and Space/Time Top/Reference/Time Top/Science/Astronomy/Amateur/Sky Calendars Top/Science/Astronomy/Solar System/Earth/Moon Top/Science/Reference/Standards/Individual Standards/ISO 8601 Top/Science/Technology/Metrology Top/Society/Holidays/Calendars and Lists

Calendars and Timekeeping Sites:

The Difference Between the Millennium and Year 2000 The Difference Between the Millennium and Year 2000: Questions and answers to satisfy the hearts of true millennium buffs. (Calendars and Timekeeping) http://www.timeanddate.com/counters/mil2000.html Millennium Mistake Millennium Mistake: Explains the difference between millenium and year 2000 as the absence of a year zero. (Calendars and Timekeeping) http://www.millenniummistake.net/ Annus Novus Decimal Calendar Annus Novus Decimal Calendar: A proposal for a non-sectarian, culturally neutral calendar system. (Calendars and Timekeeping) http://www.atlantium.org/calendaran.html The Chinese Calendar The Chinese Calendar: The mathematics of the Chinese calendar. Explains the rules for the Chinese calendar. (Calendars and Timekeeping) http://www.math.nus.edu.sg/aslaksen/calendar/chinese.shtml The Calendar, Leap Years and the Year 2000 The Calendar, Leap Years and the Year 2000: An explanation of the calendar including the origin of the day, week, month and year. (Calendars and Timekeeping) http://chemistry.csudh.edu/oliver/smt310-handouts/calendar.htm Calendrical Calculations Calendrical Calculations: Published by Cambridge University Press. Gives a unified algorithmic presentation of the Gregorian, ISO, Julian, Coptic, Ethiopic, and Islamic civil calendars. (Calendars and Timekeeping) http://emr.cs.uiuc.edu/home/reingold/calendar-book/index.shtml Calendar Studies 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. (Calendars and Timekeeping) http://hermetic.nofadz.com/cal_stud.htm Britannica.com - Clockworks: From Sundials to the Atomic Second Britannica.com - Clockworks: From Sundials to the Atomic Second: Britannica.com explores the history of timekeeping, from sundials to cesium atomic clocks. (Calendars and Timekeeping) http://www.britannica.com/clockworks Astronomy by JavaScript: Sun Calculators and More Astronomy by JavaScript: Sun Calculators and More: Applets related to calendars and keeping time, including sidererial time. (Calendars and Timekeeping) http://www.jgiesen.de/astro/astroJS/ Astronomical Time Keeping Astronomical Time Keeping: Extensive descriptions of many astronomical time keeping systems, with information on time zones and Julian day numbers. (Calendars and Timekeeping) http://www.maa.mhn.de/Scholar/times.html Calendopaedia Calendopaedia: The Encyclopaedia of Calendars. (Calendars and Timekeeping) http://www.geocities.com/calendopaedia/ Time and Date 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. (Calendars and Timekeeping) http://www.timeanddate.com/ Calendars through the Ages Calendars through the Ages: History and FAQs of calendars, from ancient Rome to outer space. Including Julian, Gregorian, Jewish, Islamic, Chinese, and Mayan. (Calendars and Timekeeping) http://webexhibits.org/calendars/ Blue Moon Myths Blue Moon Myths: Second full moon in a month, or third full moon in a single season? (Calendars and Timekeeping) http://www.infoplease.com/spot/bluemoon1.html Rosetta Calendar Rosetta Calendar: An online handy tool for converting to and from the Gregorian, Julian and Jewish calendars. (Calendars and Timekeeping) http://rosettacalendar.com/ Astro Portal - CalSKY Astro Portal - CalSKY: The worldwide interactive online astronomical/space calendar and calculator - for friends of astronomy, as well as astronomers. (Calendars and Timekeeping) http://www.calsky.com/ LunarCal - A Perpetual Chinese Lunar Calendar 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. (Calendars and Timekeeping) http://www.geocities.com/lunarcal Lunisolar Calendar Lunisolar Calendar: Lunar 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. (Calendars and Timekeeping) http://www.pburch.net/lunarcal.html Maya Calendar 2000 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 compl (Calendars and Timekeeping) http://mayacalendar.com The Islamic Calendar The Islamic Calendar: The mathematics of the Islamic calendar in Singapore. (Calendars and Timekeeping) http://www.math.nus.edu.sg/aslaksen/calendar/islamic.shtml Leap Seconds Leap Seconds: Civil time is occasionally adjusted by one second increments called leap seconds. A detailed explanation of what a second actually is, and why leap seconds are necessary. (Calendars and Timekeeping) http://tycho.usno.navy.mil/leapsec.html Time and Dates Time and Dates: Information on date, time, and time zones from the New York Public Library. (Calendars and Timekeeping) http://www.circ.uab.edu/nypldr/1time/index.htm Indian Moons Indian Moons: A list of many American Indian tribe's names for months, days, and other calendar related information. (Calendars and Timekeeping) http://www.americanindian.net/moons.html