However, most often the two dates coincide, and between the year 19 there are only 18 differences between the dates calculated using the two methods.
A well-known method of calculating the date of Easter was given by Carl Friedrich Gauss, however a simpler method was described by Jean Meeus in .
Therefore, the very first Easter Sunday—the day on which Christ rose from the dead—was the Sunday after Passover.
The paschal full moon can fall on different days in different time zones, which presents a problem when calculating the date of Easter.
, the earliest possible date of Easter is March 22, while the latest is April 25.The Passover meal was eaten at sunset on the 14th day of Nisan (Aviv).Why does the date of Easter vary by more than a month?However, these are very rare — the next time Easter falls on April 25 is in the year 2038, and the next time the date is March 22 will be in the year 2285.The most common date between the year 19 is April 19.In fact, there are as many misunderstandings about the calculation of Easter dates as there are reasons for the confusion.