Nisan 10 on the Essene Calendar is March 26. Ken explains how they get Nisan 1. I like that he said that any calendar system may be a few years off. Also, that he kept saying "if this is correct" and didn't try to say that this is the only correct calendar. For anyone that didn't want to listen... he said that on the calendar system the Essenes used, Nisan 1 was always the Wednesday closest to the spring equinox. That always made Passover begin on Tuesday.
