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hrfonouni
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A year of the Persian calendar has 12 months, the order, names, and lengths of which can be seen in the following table (* - length of the month in leap years).
No.--> Month ---> Length
1 ---> Farvardin--> 31
2 --->Ordibehesht->31
3 --->Khordad --->31
4 --->Tir--------> 31
5 --->Mordad----> 31
6----> Shahrivar-->31
7 --->Mehr------> 30
8 --->Aban-----> 30
9 --->Azar ----->30
10 --->Dey----> 30
11 --->Bahman--> 30
12 --->Esfand---> 29, 30*
The years are counted from the year 622 CE on, which was the year of the Hidjra, Mohammed's escape from Mekkah to Medina. Thus, on 21 March 2001, the Persian year 1380 began with 1 Farvardin. The Persian year 1381 began on 21 March 2002, Gregorian.
Table for the Conversion of Persian Dates into Gregorian Dates
The table mainly consists of three columns in which the Gregorian dates of the first day of each Persian month are given for the several possibilities of Gregorian and Persian normal and leap years falling on each other. The difference between the Gregorian and Persian number of the year is shown in the last column, that difference being 621 for the months from Farvardin to Dey and 622 for the last two months of the Persian year, Bahman and Esfand.
To convert a Persian date into a Gregorian one first find the column in which the Persian number of the year is to be found. On top of that column find the Gregorian date of the first day of the Persian month which the date to be converted is in. Increase the year number by the number shown in the last column of the row of the Persian month.
Example
What is the Gregorian date of 10 Tir 1369 (Persian)? The number 1369 is to be found in the middle column of the table. In the upper part of that column we find 1 Tir = 22 June. The number of the Gregorian year is 1369 + 621 = 1990. Thus, 1 Tir 1369 (Persian) corresponds to 22 June 1990 (Gregorian). Going nine days ahead we find 10 Tir 1369 on 31 June 1990 which is 1 July 1990, because June has only 30 days.
No.--> Month ---> Length
1 ---> Farvardin--> 31
2 --->Ordibehesht->31
3 --->Khordad --->31
4 --->Tir--------> 31
5 --->Mordad----> 31
6----> Shahrivar-->31
7 --->Mehr------> 30
8 --->Aban-----> 30
9 --->Azar ----->30
10 --->Dey----> 30
11 --->Bahman--> 30
12 --->Esfand---> 29, 30*
The years are counted from the year 622 CE on, which was the year of the Hidjra, Mohammed's escape from Mekkah to Medina. Thus, on 21 March 2001, the Persian year 1380 began with 1 Farvardin. The Persian year 1381 began on 21 March 2002, Gregorian.
Table for the Conversion of Persian Dates into Gregorian Dates
The table mainly consists of three columns in which the Gregorian dates of the first day of each Persian month are given for the several possibilities of Gregorian and Persian normal and leap years falling on each other. The difference between the Gregorian and Persian number of the year is shown in the last column, that difference being 621 for the months from Farvardin to Dey and 622 for the last two months of the Persian year, Bahman and Esfand.
To convert a Persian date into a Gregorian one first find the column in which the Persian number of the year is to be found. On top of that column find the Gregorian date of the first day of the Persian month which the date to be converted is in. Increase the year number by the number shown in the last column of the row of the Persian month.
Example
What is the Gregorian date of 10 Tir 1369 (Persian)? The number 1369 is to be found in the middle column of the table. In the upper part of that column we find 1 Tir = 22 June. The number of the Gregorian year is 1369 + 621 = 1990. Thus, 1 Tir 1369 (Persian) corresponds to 22 June 1990 (Gregorian). Going nine days ahead we find 10 Tir 1369 on 31 June 1990 which is 1 July 1990, because June has only 30 days.