1. What is Easter Date Calculation?

The Easter date calculator determines the date of Easter Sunday for any given year. Easter is a moveable feast that doesn't fall on a fixed date in the Gregorian calendar, but is calculated based on lunar cycles.

2. How Does the Calculator Work?

The calculator uses the Meeus/Jones/Butcher algorithm:

Explanation: The algorithm calculates Easter as the first Sunday after the first full moon occurring on or after the vernal equinox (March 21).

3. Importance of Easter Date

Details: Knowing the exact date of Easter is important for Christian religious observances and for determining dates of other moveable feasts that depend on Easter.

4. Using the Calculator

Tips: Enter any year between 1583 and 9999 to calculate the date of Easter Sunday for that year.

5. Frequently Asked Questions (FAQ)

Q1: Why does Easter's date change every year?
A: Easter is calculated based on lunar cycles (first Sunday after the first full moon after March 21), making it a moveable feast.

Q2: What's the earliest possible date for Easter?
A: March 22 (last occurred in 1818, will next occur in 2285).

Q3: What's the latest possible date for Easter?
A: April 25 (last occurred in 1943, will next occur in 2038).

Q4: Do all Christian churches celebrate Easter on the same date?
A: No, Western churches use the Gregorian calendar while many Orthodox churches use the Julian calendar for calculation.

Q5: How accurate is this calculator?
A: It's 100% accurate for years 1583-9999 in the Gregorian calendar.