How Is the Date of Easter Determined Each Year?

Learn how Easter's date is set annually based on the lunar calendar and vernal equinox, falling between March 22 and April 25.

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The date for Easter each year is determined by the Lunar calendar. Specifically, it falls on the first Sunday after the first full moon occurring on or after the vernal equinox. If the full moon falls on a Sunday, Easter is the following Sunday. This calculation aligns Easter between March 22 and April 25.

FAQs & Answers

  1. Why does Easter change dates every year? Easter changes dates every year because it is based on the lunar calendar, specifically the first Sunday after the first full moon following the vernal equinox.
  2. What is the earliest and latest possible date for Easter? Easter can fall as early as March 22 and as late as April 25, based on lunar and solar calendar calculations.
  3. What role does the vernal equinox play in determining Easter? The vernal equinox marks the starting point; Easter is celebrated on the first Sunday after the first full moon occurring on or after this equinox.