Directory of Calendars and Timekeeping Resources

Home > Science > Astronomy > Calendars and Timekeeping

Subcategories

• Archaeoastronomy
• Clocks
• ISO 8601 Standard
• Lunar Phases
• Sundials
• Sunrise and Sunset Times

Resources in This Category

• Annus Novus Decimal Calendar

  http://www.atlantium.org/calendaran.html
  A proposal for a non-sectarian, culturally neutral calendar system.

• Astro Portal - CalSKY

  http://www.calsky.com/
  The worldwide interactive online astronomical/space calendar and calculator - for friends of astronomy, as well as astronomers.

• Astronomical Time Keeping

  http://www.maa.mhn.de/Scholar/times.html
  Extensive descriptions of many timing systems, with information on time zones and Julian day numbers.

• Astronomy by JavaScript: Sun Calculators and More

  http://www.jgiesen.de/astro/astroJS/
  Applets related to calendars and keeping time, including sidererial time.

• Blue Moon Myths

  http://www.infoplease.com/spot/bluemoon1.html
  Second full moon in a month, or third full moon in a single season.

• Calendar Studies

  http://www.hermetic.ch/cal_stud.htm
  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 through the Ages

  http://webexhibits.org/calendars/
  History and FAQs of calendars, from ancient Rome to outer space. Including Julian, Gregorian, Jewish, Islamic, Chinese, and Mayan.

• Calendopaedia

  http://calendopedia.com/
  The encyclopaedia of calendars.

• GMT: Greenwich Mean Time

  http://wwp.greenwichmeantime.com/
  Complete guide to times in every time zone in the world.

• Hindu Calendar Dates 52nd Century

  http://senthilarumugam.tripod.com/id10.html
  Explains the cosmological and astronomical influences in creating the Indian calendar.

• Julian Day Numbers

  http://www.hermetic.ch/cal_stud/jdn.htm
  An explanation of the Julian day number system used by astronomers and calendricists.

• Lunisolar Calendar

  http://www.pburch.net/lunarcal.html
  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.

• Maya Calendar 2000

  http://mayacalendar.com/
  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.

• PlexGlobe: International Clock and Global Kit

  http://www.plexobject.com/software/plexglobe/
  A productivity toolkit for global users and businesses that includes world clock and calendar.

• The Calendar, Leap Years and the Year 2000

  http://chemistry.csudh.edu/oliver/smt310-handouts/calendar.htm
  An explanation of the calendar including the origin of the day, week, month and year.

• The Chinese Calendar

  http://www.math.nus.edu.sg/aslaksen/calendar/chinese.shtml
  The mathematics and rule explanation for the calendar.

• The Difference Between the Millennium and Year 2000

  http://www.timeanddate.com/counters/mil2000.html
  Questions and answers to satisfy the hearts of true millennium buffs.

• The Islamic Calendar

  http://www.math.nus.edu.sg/aslaksen/calendar/islamic.shtml
  The mathematics of the calendar in Singapore.

• The Julian and Gregorian Calendars

  http://www.hermetic.ch/cal_stud/cal_art.html
  Explanations of the Julian Calendar, the Gregorian Reform, the adoption of the Gregorian Calendar, the length of the tropical year and related matters.

• Time and Date

  http://www.timeanddate.com/
  Information such as yearly and monthly calendars, counters, countdown, and the world clock which shows the current time in cities all over the world.

• Types of Calendars

  http://www.hermetic.ch/cal_stud/lunarcal/types.htm
  An explanation of lunar, solar, lunisolar, rule-based and other calendars.

Related Categories

• Home > Reference > Time
• Home > Science > Astronomy > Amateur > Sky Calendars
• Home > Science > Reference > Standards > Individual Standards > ISO > ISO 8601
• Home > Science > Technology > Metrology
• Home > Society > Holidays > Calendars and Lists
• Home > Kids and Teens > School Time > Science > Astronomy and Space > Time

Other Languages

• Italian
• German
• Japanese
• Chinese

 

Home > Science > Astronomy > Calendars and Timekeeping

 

---

 

Thanks to DMOZ, which built a great web directory for nearly two decades and freely shared it with the web. About us