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Days Until Easter

Tested

Days until Western Easter Sunday.

Tested, not yet published. The formula for this calculator is implemented and passes its automated checks. This page stays non-indexable until it is reviewed and published.

Leave blank to use today's date

Results

Enter your values and press Calculate. Results appear here.

  • • Result

Quick answer

Days until Western Easter Sunday. Enter and the days until easter returns days Until Easter, date and weekday.

Related tools: Days Until December: Days until 1 December. Days Until Christmas: Days until Christmas. Weeks Until Easter: Days and weeks until Western Easter Sunday.

How to use the Days Until Easter

  1. Optionally, pick counting from.
  2. Press Calculate to see the result, and use Reset to start again.
Inputs of the Days Until Easter
InputWhat to enterAllowed values
Counting from (optional)A calendar date. Leave blank to use today's date—

Formula and method

Formula

days = next occurrence of Western Easter Sunday − start date

Exact integer day arithmetic in UTC.

Finds the next occurrence of Western Easter Sunday on or after the start date using its calendar rule (Western Easter by the Meeus/Jones/Butcher computus). Dates follow the proleptic Gregorian calendar.

Worked examples

These examples are verified: each one is an automated test case that the live calculator must reproduce exactly.

Example 1

Inputs: Counting from = 2024-03-10.

Results of example 1
ResultValue
Days Until Easter21 days
Date2024-03-31
WeekdaySunday
Weeks and days3 weeks, 0 days

Example 2

Inputs: Counting from = 2024-12-26.

Results of example 2
ResultValue
Days Until Easter115 days
Date2025-04-20
WeekdaySunday
Weeks and days16 weeks, 3 days

The first line is the headline result (days Until Easter). Below it the days Until Easter lists date, weekday and weeks and days, which describe the same case from other angles. Exact integer day arithmetic in UTC.

How the date of Easter is set

Western Easter is the Sunday after the first full moon on or after the spring equinox, as the church calendar defines them. It can fall between 22 March and 25 April. This page uses the Meeus/Jones/Butcher method for the Western (Gregorian) date. Eastern Orthodox churches use a different calendar and usually celebrate on a different day.

How the date of Easter is set in practice

Western Easter is the first Sunday after the first ecclesiastical full moon on or after 21 March, so it falls between 22 March and 25 April. In 2024 it is 31 March, 21 days after 10 March.

Orthodox churches use the Julian calendar for the calculation, so their Easter often falls on a different date. This page uses the Western date.

Easter Sunday in the next few years

Every figure in this table comes from running this calculator, so it matches what the form returns.

Easter Sunday in the next few years
Counting fromDateWeekdayDays Until Easter
2026-01-012026-04-05Sunday94
2027-01-012027-03-28Sunday86
2028-01-012028-04-16Sunday106
2029-01-012029-04-01Sunday90

What happens with invalid input

These messages are produced by the calculator itself, so you know what to fix.

  • Counting from: entering "2024-02-30" shows "Counting from must be a valid date." beside that field and no result.

Choosing between the Days Until Easter and similar calculators

Each row shows what a related calculator on this site asks for and what it returns, so you can pick the one that matches your question.

Choosing between the Days Until Easter and similar calculators
CalculatorYou enterIt returns
[Days Until December](/date-calendar/days-until-december/)Days Until December
[Days Until Christmas](/date-calendar/days-until-christmas/)Days Until Christmas
[Weeks Until Easter](/date-calendar/weeks-until-easter/)Time Until Easter
[Days Until Halloween](/date-calendar/days-until-halloween/)Days Until Halloween
[Days Until Thanksgiving](/date-calendar/days-until-thanksgiving/)Days Until Thanksgiving

Background: date rules

Holiday dates are defined in three ways: a fixed day of the month, a weekday position such as the fourth Thursday of November, or a calendar calculation such as the date of Easter. Counts are in whole calendar days from the start date, and the date is the calendar date, not adjusted for your time zone or for days a workplace observes instead.

Assumptions and limitations

  • Counting on the holiday itself gives 0
  • After the date has passed this year the next year's date is used

If a required value is empty, not a number, or outside its allowed range, the form marks that field with a message and shows no result instead of a misleading number. The automated checks deliberately try invalid entries for counting from to confirm this.

Frequently asked questions

Why does the date of Easter change every year?

It depends on the spring full moon and the following Sunday, not a fixed date.

Does this show Orthodox Easter?

No. It shows Western (Gregorian) Easter, which is often a different day from Orthodox Easter.

What does the Days Until Easter calculate?

Days until Western Easter Sunday. It returns Days Until Easter, Date, Weekday and Weeks and days.

What formula does the Days Until Easter use?

days = next occurrence of Western Easter Sunday − start date. Finds the next occurrence of Western Easter Sunday on or after the start date using its calendar rule (Western Easter by the Meeus/Jones/Butcher computus).

What is an example of a days Until Easter result?

With counting from 2024-03-10, the days Until Easter is 21 days.

Where does the method come from?

The method follows: US federal holiday rules: 5 U.S.C. § 6103; Easter: Meeus, Astronomical Algorithms (Gregorian computus); Calendar (New Style) Act 1750.

Sources

  • US federal holiday rules: 5 U.S.C. § 6103
  • Easter: Meeus, Astronomical Algorithms (Gregorian computus); Calendar (New Style) Act 1750

Content last reviewed 2026-11-04. Formulas and worked examples are checked by automated tests against independently computed values.