Iran Chamber Society: Iranian Calendar Converter (2024)

FAQs

How accurate is the Iranian calendar? ›

Its determination of the start of each year is astronomically accurate year-to-year as opposed to the more fixed Gregorian or Common Era calendar which, averaged out, has the same year length, achieving the same accuracy (a differently patterned calendar of 365 days for three consecutive years plus an extra day in the ...

The Persian calendar is considered the most accurate calendar in use with an error of less than 1 second/year. Learn all about the Persian calendar and how it works from Time and Date.

On March 21, 2022, the year 1401 SH (Iranian calendar) was begun, and the 14th century of SH was ended. During the last SH century, from 1301 to 1400 SH (1922–2022 AD), Iran' health has experienced various changes. The 14th century of SH began right after World War I when Iran experienced a great famine.

The Persian Solar Hijri Calendar. Officially used in Iran and Afghanistan, the Solar Hijri calendar is one of the world's most accurate calendar systems. It is also known as Persian Calendar, Iranian Calendar, and SH Calendar.

Unlike the lunar calendar prevalent in other Muslim countries in which it is the year 1444 now, the new year will be 1402 in the solar Jalali calendar, Iran's unique calendar introduced in 1079 AD. Like many things in the Iranian history, the calendar seamlessly combines Islamic and ancient Iranian elements.

The Iranian New Year begins at the midnight nearest to the instant of the northern spring equinox, as determined by astronomic calculations for the meridian (52.5°E). It is, therefore, an observation-based calendar, unlike the Gregorian, which is rule-based.

The Julian calendar is the one that was introduced in the year 46 BC by Julius Caesar to all of the Roman Empire, and it is the calendar that was used during the life of Jesus Christ and at the time of the early Church.

The Iranian calendar is a solar calendar which begins on the first day of spring and ends on the last day of winter. Hence, the first three months correspond exactly with spring, the second three months with summer, the third three months with autumn, and the last three months with winter.

The Revised Julian Calendar

With an error of only about 2 seconds per year or 1 day in 31,250, it is roughly 10 times more accurate than today's Gregorian calendar and one of the most accurate calendar systems ever devised.

The south-western part of Iran was part of the Fertile Crescent where most of humanity's first major crops were grown, in villages such as Susa (where a settlement was first founded possibly as early as 4395 cal BC) and settlements such as Chogha Mish, dating back to 6800 BC; there are 7,000-year-old jars of wine ...

What was Iran called 1000 years ago? ›

For most of history, the tract of land now called Iran was known as Persia. It wasn't until 1935 that it adopted its present name.

As turmoil around the country and the pressure on the Shah increased, he lost much of his power and U.S. support diminished. The Shah left Iran in January 1979, and the country was soon declared an Islamic Republic by the Ayatollah Ruhollah Khomeini, a previously exiled opponent of the Shah.

Iran is one of the oldest nations in the world, with a history dating back tens of thousands of years. The country's first great city, Susa, was built on the central plateau around 3200 B.C. In 559 B.C., the Persian Empire arose in southwestern Iran and conquered the Mesopotamians and Egyptians.

Gregorian year counting is based on an estimated but incorrect year of Jesus birth, the Persian calendar based on an event in the life of Mohammad. The Gregorian calendar begins with New Year's Day in January and stabilizes the spring equinox on about March 21. The Persian calendar begins on the spring equinox.

They do not use the Gregorian calendar (though many people will understand the months, roughly in French, but not the actual date). The calendar used is the solar one, with the year beginning on the spring equinox, which is usually, but not always, on our 21 March.

Hijra Calendar as the Most Accurate Depiction of Time Universe. The best surviving example of highly stable and predictable system based on the lunar (Moon) month is the calendar of Islam called Hijra Calendar.

It is based on precise astronomical observations, and moreover uses a sophisticated intercalation system, which makes it more accurate than its younger European counterpart, the Gregorian calendar. It is currently used in Iran as the official calendar of the country.

Egyptian calendar, dating system established several thousand years before the common era, the first calendar known to use a year of 365 days, approximately equal to the solar year. In addition to this civil calendar, the ancient Egyptians simultaneously maintained a second calendar based upon the phases of the moon.

There are twelve months in the Persian calendar, and their lengths vary. Depending on whether it's a leap year or not, the last six months have either 30 or 29 days, while the first six months have 31 days. Every four years or so, there is a leap year, which gives the calendar's last month, Esfand, one extra day.