In the Tajik folk culture there are some local calendars which alongside with official calendars playing their functions came from the past till to present days. The Chilla means “Forty days”. According to this calendar a year starts in December 22 with first Chilla “month” named Chillai kalon.

According to traditional folk calendars the Khirpichor ritual is celebrated in January 31. Paople celebrate it as the mark for passing coldness days of winter.

In the Tajik folk culture there are some local calendars which playing their functions came from the past till to present days alongside with official calendars. One of the popular Tajik folk calendars is Oftob dar mard (“Sun in man”), which is popular among people of Badakhshan.