Calendar / 06
Religious Holiday Dates
See when Easter, Orthodox Easter, Ramadan, Eid al-Fitr, Eid al-Adha, Passover, Rosh Hashanah, Yom Kippur, Hanukkah, Chinese New Year, and other holidays fall in any year, with the next one counted down.
Religious Holiday Dates: Easter is worked out with the Gregorian computus and Orthodox Easter with the Julian one. Jewish and Islamic dates come from the Hebrew calendar and the Umm al-Qura Islamic calendar built into your browser. Chinese festivals are calculated from the new moons and solar terms in Beijing time, which keeps years such as 2027, when the browser's own Chinese calendar is a day out, correct. Runs 100% locally in your browser with zero server file uploads.
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Islamic dates follow the Umm al-Qura calendar used in Saudi Arabia; many countries begin Ramadan and the Eids on the local sighting of the new moon, so the day can differ by one. Jewish and Islamic days begin at sunset. Hindu, Buddhist, and Sikh festivals, which follow regional lunar calendars, are not listed.
How the dates are calculated
Christian movable feasts hang on Easter, which the Western churches calculate with the Gregorian computus: the first Sunday after the ecclesiastical full moon on or after 21 March. Ash Wednesday is 46 days before, Good Friday two days before, and Pentecost 49 days after. Orthodox churches apply the same rule on the Julian calendar, which currently runs 13 days behind.
The Hebrew calendar is fixed by rules and can be calculated exactly, and so can the Umm al-Qura calendar, which Saudi Arabia publishes in advance. Chinese festivals follow the lunisolar calendar, whose months begin on the day of the new moon in Beijing; they are calculated here from the positions of the Sun and Moon, because the calendar built into browsers gets a few years wrong where a new moon falls within minutes of midnight.
Reading the dates correctly
Jewish and Islamic days start at sunset, so a holiday on a given date begins the evening before; the table marks them. In many countries Ramadan and the Eids begin on the actual sighting of the new crescent, announced the evening before, which can move them by a day from any calculated calendar.
To count down to one of the dates, open the countdown; to print a year with the dates written in, use the printable calendar.
How to use it
- Choose a year.
- Show or hide Christian, Jewish, Islamic, and Chinese holidays.
- Read the dates, with notes on holidays that begin the evening before or depend on the moon.
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Everything is calculated in your browser; nothing is sent anywhere.
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Frequently asked questions
When is Easter?
Western Easter is the first Sunday after the first full moon on or after 21 March, by the church's tables rather than the astronomical moon, so it falls between 22 March and 25 April. Orthodox churches use the same rule on the Julian calendar, which is why their Easter falls on the same day or one to five weeks later.
Why might Ramadan start a day earlier or later?
Many countries begin Islamic months when the new crescent is actually seen, which can be a day after the calculated date. The dates here follow the Umm al-Qura calendar used in Saudi Arabia; local announcements decide the exact day.
Why does Hanukkah start the evening before?
In the Jewish calendar a day runs from sunset to sunset, so a holiday dated 25 Kislev begins at sunset on the 24th. The same is true of Islamic days.
Why is Diwali not listed?
Hindu, Buddhist, and Sikh festivals follow regional lunar calendars with rules that differ between communities, so a single calculated date would often be wrong. Check a local calendar or temple for those.
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