Revised Julian calendar
An astronomical rule for Easter was proposed by the 1923 that also proposed the Revised Julian calendar: Easter was to be the Sunday after the midnight-to-midnight day at the meridian of the Church of the Holy Sepulchre in Jerusalem (35° 13′ 47.2″ E or UT + 2h 20m 55s for the small dome) during which the first full moon after the vernal equinox occurs.