Arabic and Indian Numerals

WESTERN 0 1 2 3 4 5 6 7 8 9
ARABIC
PERSIAN
IRANIAN
INDIAN

Islamic (AH) to Gregorian (AD) Date Conversion

AD = 0.97023 x AH + 621.57
Iranian Solar Hejri (SH) Year + 621 or 622* = Gregorian (AD) Year

* depending on time of year