1260 Days after November 2 is April 15 (Nisan19/20) with "Easter" occurring on Nisan 20 or Sunday April 16.
The Catholic Take on November 2:All Souls Day - Did the Catholics Get It Right? Almost, but Not Quite...
Rabbi Stephen Epstein on Heshvan 1:Genesis 6:9 - 11:32, Numbers 28: 9 -15, Isaih 66: 1 - 24"Noah and the Flood repopulating the world; Humankind is evil?; Birth of Nimrod and languages."
Go to the 4-minute mark to skip the chit chat: