No it's not a photo copy of ours,and it shouldn't be,but it has some amazing likenesses in it's Articles.
All courtesy of those who serve to keep us free.
The solar calendar they mention seems to start in the year 622 like the better-known Islamic lunar calendar...thus 2004 is 1382. It says the date 1298 is on the flag...that would correspond to 1919 or 1920 so it must have to do with the recognition of Afghanistan as a fully independent country shortly after World War I.