The Islamic calendar is based on lunar cycles. The mean year lasts about 11 days less than the Gregorian year, which causes an offset from one year to another.
The year is pretty easy to spot on coins. It is made of 4 Arabic numerals (١٢٣٤٥٦٧٨٩٠) or Western numerals (1234567890).
For instance, the opposite coin reads ١٣٧٨, that is 1378. The Islamic year 1378 began on July 18, 1958 and ended on July 6, 1959.
Year reading
Writing years is to be proceed the same way as in English. Only the design of numerals changes.Here is the conversion table:
