However, because the Solar Hijri calendar is an observational calendar, there are no mathematical rules to determine leap years. Like in the Gregorian calendar, a common year in the Solar Hijri calendar has 365 days while a leap year has 366 days. For example, Janufell in year 1401 in the Solar Hijri calendar, which corresponds to year 1444 in the Hijri calendar. Because of this, the year counts between the Solar Hijri calendar and the Hijri calendar differ substantially.

Although the Solar Hijri calendar shares this start date with the Islamic Hijri calendar, the calendar systems are not related otherwise. The Solar Hijri year count starts with the Islamic prophet Mohammed's migration ( Hegira or Hijrah) to Medina in 622 CE. Leap years in the Persian calendar When Was Year 1? The last month, Esfand, has 29 days in a common year and 30 days in a leap year. The first 6 months have 31 days, and months 7 through 11 have 30 days. How accurate are different calendar systems? Calendar Structure Months in the Persian Calendar Month NamesĪ year in the Solar Hijri calendar is divided into 12 months of varying lengths. Tying the Solar Hijri calendar so closely to the astronomical seasons makes it much more accurate than the Gregorian calendar, which, even in its modern form, deviates from the solar year by 1 day in 3236 years. The first day of the new year is called Nowruz, and it is celebrated around the world by Iranian people. The year begins at midnight closest to the vernal equinox in Iran-specifically at the Iran Standard Time meridian at longitude 52.5° east, which runs about 250 miles (400 km) east of Tehran. Unlike the Gregorian calendar, which follows a set of predetermined rules to stay in sync with the solar year, the Solar Hijri calendar is based on astronomical observations. The Solar Hijri calendar is a solar calendar, meaning that its time reckoning is based on the Earth's movements around the Sun. The Solar Hijri calendar is not to be confused with the Islamic Hijri calendar used in many Muslim countries and by Muslims around the world. Business Date to Date (exclude holidays).

Hijri calendar 2022