Persian Calendar

The Persian calendar, also known as the Solar Hijri calendar, is the official calendar of Iran and Afghanistan. It is a solar calendar with a 33-day month, and has a year of 365 days. The Persian calendar is based on the observation of the vernal equinox by Iranian astronomers in the early 1st millennium CE. The first day of the Persian calendar falls on the March equinox, the first day of spring in the Northern Hemisphere. The Persian calendar has a long history, and its origins can be traced back to the ancient Zoroastrian religion. The Zoroastrian religion was founded by the prophet Zoroaster in the 6th century BCE, and was the official religion of the Persian Empire. The Zoroastrian calendar was a lunar calendar with a year of 360 days. The first day of the Zoroastrian calendar was the first day of spring, and the last day was the first day of winter. The Zoroastrian calendar was replaced by the Islamic calendar in the 10th century CE. The Islamic calendar is a lunar calendar with a year of 354 or 355 days. The first day of the Islamic calendar is the first day of the month of Muharram, and the last day is the last day of the month of Dhu al-Hijjah. The Islamic calendar is used by Muslims all over the world to determine the dates of religious festivals and events. The Persian calendar is used by Iranians to determine the dates of religious and national holidays. The Persian calendar is also used by Afghans, and is the official calendar of the Afghan government. The Persian calendar has 12 months, with the first month being Farvardin and the last month being Esfand. The months of the Persian calendar are: Farvardin Ordibehesht Khordad Tir Mordad Shahrivar Mehr Aban Azar Dey Bahman Esfand The Persian calendar is a solar calendar, and the days of the month are determined by the position of the sun. The first day of the month is the day of the vernal equinox, and the last day of the month is the day of the autumnal equinox. The Persian calendar has a year of 365 days, with each month having 30 or 31 days. The months of the Persian calendar are not named after the constellations, but after the signs of the zodiac. The Persian calendar is used by Iranians to determine the dates of religious and national holidays. The Persian calendar is also used by Afghans, and is the official calendar of the Afghan government.