TRIVIA: What's Your AH Birthyear?

How to roughly calculate Arabic AH dates on coins to Western dates.

Just multiply the Islamic year number by 0.97, and then add 622 to get the Gregorian year number. New Arabic coins soon to be minted will bear the AH date 1429.

Example:

1429
X .97
1386.13
+622
2008.13

Round to the nearest whole number by disregarding the decimal amount .13.

Thus an Arabic coin with the AH date of 1429 corresponds to our Western date, 2008.

Why the difference?
First thing you should know is the Hejira (AH) Year is shorter (approx. 3%) than a Gregorian Calendar year. There are 12 Months in a an Islamic Year, just like a Gregorian year, but the Islamic months are either 29 or 30 days long. The Islamic month begins with an observation of the new moon.

Second thing to consider is that the Islamic Hejira Calendar's Year One began in the Gregorian Year 622.

Because of these factors the Islamic year only occurs within a Gregorian Year once every 33 or 34 years.

Guess What? That will happen next year. That's right! The Islamic calendar year of 1429 will be entirely within the Gregorian calendar year of 2008.(January 9 (evening) to December 28, 2008 (evening))!

Have you calculated your birth year into an AH date, yet?

Here's a roughly easy way to do that:

I was born in the Gregorian Calendar year 1935.

1935
-622
1313

1313
0.97 = 1353.608
Round to nearest whole number = 1354

My AH date is "1354."

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Well for me that would make it 1295

 

haha clinker you donthave to calculate you can actually know your birth year if youhave an online calculator

 

1381 for me.

 

That makes mine 1380 AH

 

1369 for me

Bruce

 

Spock, are you so shy that you can't reveal your AH year? :rolling:

Bruce

 

De Orc, you were born in 1878? So was my grandfather (LOL).

Great info Clink

 

1407 for me, lol.

 

I have got to redo mine. According to my first results, I should have been wiped out with the Dinosaurs

 

Hey everypne! Thanks for participating!

Clinker

 

randygeki and Smaugy...

Thanks for the nomination...

Clinker

 

Coolness.

 

FreakyGarretC:

Thanks for your positive comment and the added Nomination!

Clinker

 

1381 for me Clinker.

Great thread as usual my friend. This formula will help me narrow things down when looking up Arabic coins at work!

clembo

 

Mine: 1327

I went ahead and did Dougs also:

94


stainless

 

If I did it right, mine is 1414. What is even more kool is that I was born 4/4/94. Wanna guess my favorite number? Very kool thread Clinker, thank you!!

Phoenix

 

Haha, I was thinking on picking on Doug with this thread, (before I read your post) but I decided not too. Great minds think a like I guess. :high5:

Phoenix

 

I guess they do :high5:


stainless