Eastern orthodox christian dating
Eastern Christianity bases its calculations on the Julian Calendar.
Because of the 13-day difference between the calendars between 19, 21 March corresponds, during the 21st century, to 3 April in the Gregorian Calendar.
Josephus, Jewish War 6.10.1/423 ("They sacrifice from the ninth to the eleventh hour").
Philo, Special Laws 2.27/145 ("Many myriads of victims from noon till eventide are offered by the whole people").
No details for the computation were specified; these were worked out in practice, a process that took centuries and generated a number of controversies.
In most European languages the feast called Easter in English is termed by the words for passover in those languages and in the older English versions of the Bible the term Easter was the term used to translate passover.Most Christians refer to the week before Easter as "Holy Week"—it contains the days of the Easter Triduum, including Maundy Thursday, commemorating the Maundy and Last Supper, In Western Christianity, Eastertide, or the Easter Season, begins on Easter Sunday and lasts seven weeks, ending with the coming of the fiftieth day, Pentecost Sunday.In Eastern Christianity, the season of Pascha begins on Pascha and ends with the coming of the fortieth day, the Feast of the Ascension.Easter therefore varies between 4 April and 8 May on the Gregorian calendar (the Julian calendar is no longer used as the civil calendar of the countries where Eastern Christian traditions predominate).Also, because the Julian "full moon" is always several days after the astronomical full moon, the eastern Easter is often later, relative to the visible moon's phases, than western Easter.