Easter Date Calculator

Calculate Gregorian Easter and related dates.

No sign-up. Progress is stored only in this browser when storage is available. It does not sync between devices.

Preparing your tool…

A little more to discover.

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Slide eight tiles into a glowing cathedral window.

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Find your way through a new maze to the chapel.

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Pair illustrated Christian symbols from memory.

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Light every pane. Each move changes its neighbours.