How many days until Easter?

Easter 2027 at a glance

Why Easter moves

Easter is the only major date in the western calendar that is set by the Moon.

The rule is that Easter Sunday is the first Sunday after the first full moon on or after 21 March.

Three moving parts, and each does something. 21 March fixes the earliest the window can open. The full moon moves within that window, because the lunar month is about twenty-nine and a half days and does not divide into the solar year. The Sunday then pushes the date forward by up to six more days.

Put together, Easter can fall anywhere between 22 March and 25 April, a five week range. This year it lands on 28 March 2027.

One detail is the source of most arguments about this: the church does not use the actual astronomical moon. It uses an ecclesiastical full moon, taken from a table that approximates the lunar cycle. The two are usually the same day and occasionally are not. The rule is a calendar rule, not an observation.

Why there are two Easters

Orthodox churches apply the same rule on the Julian calendar and with a different lunar table. The Julian calendar now runs thirteen days behind the Gregorian one, and that gap is derived here rather than hard-coded, because it becomes fourteen days in 2100.

This year the gap is 35 days, so Orthodox Pascha falls on 2 May 2027. The gap is never fixed: it is nothing in some years and as much as five weeks in others.

The dates here are computed with the anonymous Gregorian computus for the western date and Meeus’s Julian algorithm for the Orthodox one, so they stay correct for any year you ask for rather than running out at the end of a table.

Everything that moves with Easter

Once Easter is fixed, a whole season follows from it by simple offsets. Ash Wednesday is forty-six days before, Palm Sunday seven days before, Good Friday two days before, Ascension thirty-nine days after and Pentecost forty-nine days after.

That is why the spring school holidays, the bank holidays and the whole spring term shift from one year to the next. In the United Kingdom and Ireland, Mothering Sunday moves too: it is three weeks before Easter, which puts it on Sunday 7 March 2027 this year.

How this date is set

Easter Sunday is the first Sunday following the first ecclesiastical full moon that falls on or after 21 March. The ecclesiastical full moon is a value from a table, not an observation, so it can differ from the astronomical full moon by a day or two. The rule confines Easter to a 35-day window between 22 March and 25 April.

Easter Sunday in the next ten years

Dates around Easter

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