Miķeļi () or Miķeļdiena is a Latvian autumn equinox and annual harvest festival and market. Latvian Miķeļi dainas referred to good and rich husbands as bread fathers, who are associated with the autumn harvest ripening. In different regions, the Miķeļi celebration was also called Mīkaļiem or Mīklāli, but it is also known to other households as Sila Miķelis, Miega Miķelis, and Miega Mača. According to an old calendar, this holiday is celebrated around autumn equinox time (around 21–23 September), when the duration of night is same as the duration of day.