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 through the Ages History and FAQs of calendars, from ancient Rome to outer space. Including Julian, Gregorian, Jewish, Islamic, Chinese, and Mayan.
Calendars Through the Ages History and FAQs of various calendars, including Julian, Gregorian, Jewish, Islamic, Chinese, and Mayan. Astronomy, years, months, and days of the week.
Calendopaedia All about calendars, different kinds, astronomical time, and how years are counted.
Calendrical Calculations Published by Cambridge University Press. Gives a unified algorithmic presentation of the Gregorian, ISO, Julian, Coptic, Ethiopic, and Islamic civil calendars.
Indian Moons A list of many American Indian tribe's names for months, days, and other calendar related information.
Julian Day Numbers An explanation of the Julian day number system used by astronomers and calendricists.
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.
Lunarcal Perpetual Chinese Lunar calendar program for 1900-2060. Calculates Chinese New Years and major festival dates. Exact moon phases shown.
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.
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.
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.
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.
Rosetta Calendar An online handy tool for converting to and from the Gregorian, Julian and Jewish calendars.
The Julian and Gregorian Calendars 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 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 Date Calendar: This site includes lots of information that is time and date related, such as yearly and monthly calendars, counters, countdown, and the world clock which shows current time in cities all over the world.
Time and Dates Information on date, time, and time zones from the New York Public Library.
Types of Calendars An explanation of lunar, solar, lunisolar, rule-based and other types of calendars.
