Date Systems: Iran

This article contains Persian text, written from right to left with some letters joined. Without proper rendering support, you may see unjoined Perso-Arabic letters written left-to-right, instead of right-to-left or other symbols instead of Perso-Arabic script.

Iranian coins use the Solar Hijri calendar, which starts on March 20 or 21. Therefore, a Solar Hijri (SH) year contains roughly the last three quarters of a Gregorian year and the first quarter of the next. From 1976 - 1978, Mohammad Reza Shah Pahlavi changed the country to an "imperial" calendar, based on the birth of Cyrus rather than the flight of Muhammad.

Step 1

Iranian dates are read from left to right and use the Persian variant of Eastern Arabic numerals. Using the table below, locate a sequence of 4 numerals.

0 1 2 3 4 5 6 7 8 9
٠ ۱ ۲ ۳ ۴ ۵ ۶ ۷ ۸ ۹

Step 2

Using the number from Step 1, determine the date system used from the table below.

Step 3

Take the number from Step 1 and add the corresponding offset for the date system found in Step 2. This will equal the first Gregorian year spanned by the Iranian year. See the examples below.

Date System Number Range Dates Used (AD) Offset
Imperial Calendar (MS) 2535 - 2537 1976 - 1978 -559
Solar Hijri (SH) Otherwise
(1343+)
1925 - Present +621
Example Notes
۱ ۳ ۴ ۶ SH1346 + 621 = 1967; AD1967 - AD1968
۲ ۵ ۳ ۶ MS2536 - 559 = 1977; AD1977 - AD1978