Why does Easter fall on a different date each year?

Easter is a moveable feast tied to the lunar calendar. It falls on the first Sunday after the first full moon on or after the spring equinox (March 21). Because lunar cycles do not align perfectly with the Gregorian calendar year, the date shifts annually between March 22 and April 25.

What algorithm does this tool use?

It uses the Anonymous Gregorian algorithm (also called the "Meeus/Jones/Butcher" algorithm), a compact set of integer arithmetic steps that reliably computes the date of Easter Sunday for any Gregorian year.

Is this calculation accurate for all years?

Yes — the Anonymous Gregorian algorithm is accurate for all years in the Gregorian calendar (1583 onward). It matches published Easter calendars from churches and astronomical organizations.

Does the tool account for my local time zone?

The countdown uses your device's local midnight as the reference point, so the day count reflects your local calendar date rather than UTC.

What is the earliest and latest Easter can fall?

Easter Sunday can fall as early as March 22 and as late as April 25 in the Gregorian calendar. Dates outside this range are not possible.

Days Until Easter

Name: Days Until Easter
Availability: InStock
Author: Nham Vu

See exactly how many days remain until Easter Sunday and browse the next 5 Easter dates — all computed in your browser.

Easter Sunday Countdown

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Today: —

Next 5 Easter Dates

Year	Date	Days Away
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Easter is the first Sunday after the first full moon on or after March 21. Dates range from March 22 to April 25.

Look Up Easter for Any Year

Enter year:

Summary

See exactly how many days remain until Easter Sunday and browse the next 5 Easter dates — all computed in your browser.

How it works

Your browser reads today's local date.
The Anonymous Gregorian algorithm computes Easter Sunday's date for the current year.
If Easter has already passed this year, the algorithm advances to the next year.
The difference between today and Easter Sunday is displayed as a day countdown.
The next five Easter dates are computed and listed in a table below the countdown.

Use cases

Plan family gatherings or holiday travel well in advance.
Schedule retail promotions or seasonal marketing campaigns around Easter.
Help teachers and students track the school break calendar.
Verify Easter dates for event management or calendar software.
Satisfy curiosity about when Easter falls over the next several years.

Frequently Asked Questions

Last updated: 2026-06-09 · Reviewed by Nham Vu