Easter is a Christian holiday that celebrates the resurrection of Jesus Christ, and its date varies each year. To understand when Easter falls on the Jewish calendar, we need to recognize that the Jewish calendar is lunar-based, while the Gregorian calendar, which is used by most of the Western world, is solar-based.
The date of Easter is determined based on a formula that takes into account the first full moon of spring, falling on or after the vernal equinox. This can lead to Easter being celebrated on a Sunday between March 22 and April 25. Meanwhile, Passover, a Jewish festival, usually falls in March or April, beginning on the 15th day of the month of Nisan in the Jewish calendar.
Because of the overlap in timing, Easter can often fall around Passover. In some years, the two celebrations might even coincide. This relationship stems from the fact that the events of Easter, particularly the crucifixion and resurrection of Jesus, occurred after Passover according to the Gospels.