Esfand is the twelfth month of the Persian calendar, which is used in Iran and some other regions. It typically corresponds to February and March in the Gregorian calendar. Esfand has 29 days in common years and 30 days in leap years. The month is significant as it marks the end of winter and the approach of spring. In Persian culture, Esfand is associated with various traditions and celebrations. One notable event is Sizdah Bedar, which occurs on the thirteenth day of the new year, symbolizing the importance of nature and outdoor activities. The month is also linked to the celebration of Nowruz, the Persian New Year, which begins on the first day of Farvardin, the following month.