TEKUFOT & SEASONS
Four Quarters · Four Transitions · One Sacred Year
Study the 91-day quarters, transition days, seasonal identities, and the assumptions of the configured calendar model.Spring / First Quarter
Days 1–91Nisan through the first Tekufah transition
Summer / Second Quarter
Days 92–182Second quarter and Tekufah Tammuz relationship
Fall / Third Quarter
Days 183–273Third quarter and Tekufah Tishrei relationship
Winter / Fourth Quarter
Days 274–364Fourth quarter and Tekufah Tevet/Nisan relationship
Model transparency
The four 91-day quarter structure is part of the governed 364-day calendar model. Exact civil anchoring, AM chronology, and leap-week compatibility rules are model settings and remain visible in Calendar Research & Sources.
Open Calendar Research & Sources