@dltsrq You were kind to respond to my question last year. You recommended a site for calendar conversion involving the the Islamic and Gregorian calendars. When I place a Gregorian year into the converter, does the result indicate the Islamic year with the greatest number of days. ie. 1464A.D. = AH868. Is this the best AH year or could it be AH867 or AH869. As you can tell I am confused on this matter. Thank you, Tibor This is the site you gave me: https://www.islamicity.org/hijri-gregorian-converter/
Sorry to butt in, but I can maybe help a little. The AH year is about 354-355 days. So there will be a few years where the AH year is completely overlapped by the AD year. In this case an AH year corresponds completely with a single AD year. Conversely, that AD year will correspond with 2 or 3 different AH years. The rest of the time, the AH year will cross an AD year boundary, and each AH year will correspond with two possible AD years and vice-versa.
[edited] The simplest way to state it, I think, is that if you want to use a single equivalent Hijri year, go with the Hijri year in which the greater chunk of the Gregorian year falls.
How can I tell where the greater chunk falls? ie. 1464 A.D. = AH868 Does this mean that the greater chunk is in AH868. Is this true for the rest of the conversions?
You have to see where January 1 of the particular Gregorian year falls on the Hijri calendar. If it falls before 1 Rajab (the midpoint of the Hijri year), I would give it the earlier date. If it falls on 1 Rajab or later, I would give it the later date. 1 January 1464 = 20 Rabi' al-Thani 868. Rabi' al-Thani is the 4th month, therefore before 1 Rajab, so for simplicity, AD 1464 = AH 868. Otherwise, 868/869. Because the Gregorian solar year is about 11 days longer than the Hijri lunar year, if January 1 falls a few days before 1 Rajab, I suggest sticking with the split date to avoid mathematical headaches like the one I have just now.
