Okay... so the year is 2004 - well sort of. I was thinking, and my apologies if I use the wrong terminology, but its 2004 in terms of the "Christian" calendar. IE I think Jesus was born in year zero, right? Hence the BC and AD references.
Now, my question is... there are many other different calendars out there for other cultures and religions and presumably, they wouldn't have this same Christ landmark as a base year. So what year is it using these other calendars? I'm guessing some of them must be much older, but do they keep track of it in the same way?
And can someone briefly explain how some of the other calendars work? For example, New Year's is different for many cultures. Do they all have the same number of days? Are there always 12 months? My friend follows the Greek Orthidox version of New Year's. A fellow employee celebrates his Persian New Year as the most significant holiday of the year. And of course there's Chinese New Year coming up (which I'm looking forward to catching some of the celebrations). All different days.
I guess it might be a little different to explain, but perhaps someone can enlighten me. How many different versions are there, what are the differences?