Yalda 2024 Date. Every year, on december 21 st, iranians gather together to celebrate one of the traditions of their forefathers:. December 20, celebrating winter solstice.
Photo by fatane rahimi on unsplash. According to the persian calendar*, this festival is celebrated from sunset on the 30th day of the month of azar (the 9th month of the persian calendar and the last day of autumn) till sunrise.