Aaj kal aap aksar sunte hain Shamsi, Miladi, aur Hijri nizamoon ke baare mein. Kai logon ko lagta hai in alag-alag tareeqon ko samajhna. Haqeeqat mein , yeh har tareeqe duniya ke hisse mein zamaney time ka hissa hain. Miladi tareeqa {goi ki | shabashme' | bas] saal ke roz ki ginti par mabni hai aur Shamsi tareeqa suraj ke ghiraaron ke rakhne par d