The document provides an overview of the Persian calendar. The Persian calendar is a solar calendar with 12 months, each with either 29, 30, or 31 days for a total of either 353, 354, or 355 days per year. The months are Farvardin, Ordibehesht, Khordad, Tir, Mordad, Shahrivar, Mehr, Aban, Azar, Dey, Bahman, and Esfand. The Persian New Year falls on the spring equinox, around March 21.