Sacred Calendar — Holy Days of the World's Religions
A single calendar of holy days across thirteen traditions — Christian, Muslim, Jewish, Hindu, Buddhist, Taoist, Sikh, Jain, Baha’i, Shinto and more. Computed, not copied.
Filter by tradition
Upcoming
Dates marked estimated or regional may differ by one day.
One year, thirteen traditions
Most calendars show one faith at a time. This one lays them side by side, so you can see when Ramadan overlaps Lent, or how close Diwali falls to the Christian season of All Saints. Filter to a single tradition, or clear the filters and read the whole year at once.
How the dates are calculated
Nothing here is typed in by hand. Easter and Orthodox Pascha come from the computus — two different arithmetic rules, which is why they fall on different Sundays. Islamic dates are converted from the tabular Hijri calendar. Hebrew dates come from the Hebrew calendar itself, with its leap months and postponement rules. Chinese, Buddhist and Taoist festivals follow the lunisolar calendar, and Hindu, Jain and Sikh festivals are anchored to the same new and full moons.
Why some dates carry a note
Three kinds of uncertainty are marked. Estimated: an Islamic month begins with local moon sighting, so a computed date can land a day either side. Regional: a Hindu or Sikh festival is fixed by a lunar day that can straddle midnight, so neighbouring regions keep it on different civil dates. Everything else is exact, and labelled as such.
Questions
Why is Eid sometimes a day earlier than shown?
Islamic months begin when the new crescent is actually sighted, which varies by country and by weather. This calendar uses the tabular Hijri reckoning, accurate to within a day, so a local announcement may differ.
Can I follow only one religion?
Yes — click a tradition in the filter row. Selecting several shows just those; clearing the selection returns the whole year.
The whole year, at a glance
Pick any day to read what falls on it, or follow the coloured dots to find where traditions overlap.