Rahvakalenderi
Rahvakalenderi is the Estonian term for the traditional folk calendar used in Estonia to mark the agricultural year with a cycle of seasonal festivals, rites, and days named for weather, farming tasks, or folklore. It is an informal calendar, not an official Gregorian reform, and was historically observed by rural communities before modernization. The calendar centers on natural cycles—solar year, seasons, and weather patterns—often aligned with agricultural work such as sowing, mowing, harvest, and animal care. Days within the Rahvakalenderi typically have descriptive local names rather than fixed calendar dates, and regional variations are common.
Christian influence later integrated saintly days into the folk framework, producing a syncretic set of observances
In modern times, the concept is studied by ethnographers and folklorists and appears in folklore collections,