: Because 364 is divisible by seven, dates never shifted relative to the week. For example, Passover always occurred on a Tuesday. Qumran Calendar - John P. Pratt Home Page
The study of calendars in the Dead Sea Scrolls (DSS) centers on a unique 364-day timekeeping system that was central to the identity and eventual schism of the Qumran community. Unlike the mainstream Jewish lunar-based calendar of the Second Temple period, which consisted of 354 days, the DSS community followed a schematic solar year inherited from earlier traditions like the Book of Jubilees and 1 Enoch . 1. Structural Design of the 364-Day Calendar Calendars in the Dead Sea Scrolls: Measuring Ti...
: The year and every quarter always began on a Wednesday , the day the sun, moon, and stars were created in Genesis. : Because 364 is divisible by seven, dates
: Four seasons of 91 days (13 weeks) each. Every quarter consisted of two months of 30 days and a third month of 31 days. Pratt Home Page The study of calendars in
The Qumran calendar was prized for its mathematical precision and immutability. Its structure ensured that religious festivals always fell on the same day of the week, year after year. : 364 days, divided into exactly 52 weeks.