When Is Yalda 2024 Date. Yalda night, also called shabe yalda or shabe chele, is the longest night of the year between the last day of fall and the first day of winter, which falls on december 21 every. Yalda is a persian celebration of the longest night of the year.

Shabe yalda (شب یلدا‎), or the night of yalda, is a persian festival celebrated on the longest and darkest night of the year in the northern hemisphere i.e., the night of the winter solstice. Yalda is an ancient persian festival that is celebrated on the longest night of the year, typically around december 20th or 21st.