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Wednesday 31st August 2016
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Why does Easter move around so much?


Why does Easter move around so much? In 2009, it's almost four weeks later than in 2008.
Chelsea, Brentwood


** Definitive **
Name: Tim, Feltham
Qualification: I got the answer from a nun
Answer: Tristan almost got it right. It's the first Sunday, after the first full moon after the vernal equinox - which is when night and day are the same length.

Name: Tristan, Plumstead
Qualification: I was told this at school
Answer: It's the first Sunday after the fourth full moon of the year. Hence the reason Easter can move around by up to four weeks. In olden times, the calendar was based on the 28-day cycle of the moon, so that was how they measured it.