The Yoruba Òsè calendar is a traditional spiritual system based on a 4-day week,
with each day dedicated to specific Òrìṣà.
The calendar emphasizes the cyclical nature of time, aligning rituals, divination, and worship with these days to maintain harmony with spiritual forces. It operates within the broader Yoruba lunar calendar, incorporating larger cycles of months and years for agricultural, communal, and ceremonial purposes.
Different Isese lineages may celebrate Orisa on different days.
Please see below for the Òsè calendar of Ilé Àṣẹ Òsátúrúpọ̀n.