JalaliKalender

The Jalali calendar, also known as the Persian calendar, is the official calendar in Iran and Afghanistan. It is a solar calendar with a year consisting of 12 months, each with 30 or 31 days, and a regular year of 365 days. The Jalali calendar is based on the solar year, with the year starting on the vernal equinox, which occurs on or around March 21st in the Gregorian calendar.

The Jalali calendar was introduced in 1925 by Reza Shah Pahlavi, the Shah of Iran at the time. It was designed to replace the Islamic calendar, which was used in Iran at the time, and to promote Persian culture and national identity. The calendar is named after Jalal ad-Din Muhammad Bal'ami, a Persian astronomer and mathematician who lived in the 13th century.

The Jalali calendar has 12 months, with the first six months being the same as the Gregorian calendar (Farvardin, Ordibehesht, Khordad, Tir, Mordad, and Shahrivar) and the last six months being different (Mehr, Aban, Azar, Dey, Bahman, and Esfand). Each month has 31 days, except for Esfand, which has 29 days in a common year and 30 days in a leap year.

Leap years in the Jalali calendar occur every four years, similar to the Gregorian calendar. However, the Jalali calendar has a different leap year cycle, with leap years occurring every 33 years. This means that the Jalali calendar aligns with the solar year more closely than the Gregorian calendar.

The Jalali calendar is used for both civil and religious purposes in Iran and Afghanistan. It is used to determine the dates of holidays, festivals, and religious events. The calendar is also used for administrative purposes, such as setting the dates of elections and other government events.

In recent years, there has been debate about whether to adopt the Gregorian calendar in Iran. Proponents of the change argue that the Gregorian calendar is more widely used internationally and would make Iran more integrated with the global community. Opponents of the change argue that the Jalali calendar is an important symbol of Persian culture and national identity, and that adopting the Gregorian calendar would dilute this identity.

Overall, the Jalali calendar is an important aspect of Iranian and Afghan culture and history, and its use continues to be a subject of debate and discussion.