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  • Calendar
    By Eric Weisstein. Part of his great Treasure Trove of Astronomy.
  • Calendars and Their History
    Reprinted from the Explanatory Supplement to the Astronomical Almanac.
  • Calendar Studies
    Peter Meyer's articles on the Gregorian and Julian calendars, the ISO date format, the Julian day number system, C functions for date conversion, the Maya calendar and the Goddess Lunar Calendar plus software for calendrical conversion.
  • English Calendar
  • The Moon
    Current information on moon phases.

Perpetual Calendars

Religious Calendars:

Subject Calendars

page last updated 4/16/2014 3:09 PM