Santa Clara University

Religious Studies department

Calendars of the World's Religions

The calendars of the world reflect the way the world's cultures organize time, and that in turn reflects their cosmologies, or the ways they believe the world to be ordered. Because cosmology is a branch of theology/philosophy, the world's religions have played a significant role in determining what these calendars ought to be.

This page links you to calendar calculators and background information about systems of reckoning time in all the major extant traditions.

Background Buddhist Chinese Christian
Hindu Jewish Muslim Sikh

General Information
  • Calendars - by L. E. Doggett, introduces the Gregorian, Hebrew, Islamic, Indian, Chinese and Julian calendars; reprinted from Explanatory Supplement to the Astronomical Almanac, (ed. P. Kenneth Seidelmann; Sausalito, CA: University Science Books, 1992).

  • Calendars through the Ages - a web exhibit provided as a public service of the Institute for Dynamic Educational Advancement (IDEA) by WebExhibits as a complement to

  • The Buddhist Calendar - information about the calendar, based on scriptural sources in the Pali canon of Theravada Buddhism, hosted by BuddhaNet.

  • Dharma Calendar - allows you to compare the the Gregorian and Buddhist calendars and provides other resources; hosted by the United Trungram Buddhist Fellowship.


Armenian Church
  • Worship - the liturgical calendar of the Armenian Church.

Coptic Orthodox Church
Orthodox Church
Roman Catholic




  • The Sikh Calendar - Gurupurabs and festival dates for the current year, along with background information about the calendar; hosted by Gateway to Sikhism.

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