Aaj kal aap aksar sunte hain Shamsi, Miladi, aur Hijri nizamoon ke baare mein. Zyaada logon ko nata hai in alag-alag tareeqon ko samajhna. Dar असल, yeh sab tareeqe duniya ke hisse mein zamaney time ka hissa hain. Miladi tareeqa {goi ki | shabashme' | bas] saal ke roz ki ginti par mabni hai au