sentences:  Each such season consisted of two 30-day months followed by one 31-day month, with the 31st day ending the season, so that Enoch's Year consisted of exactly 364 days.There is some evidence that the group whose writings were found at Qumran used a variation of the Enoch calendar (see Qumran calendar).The Enoch calendar was purportedly given to Enoch by the angel Uriel.