"18 ä¹æœˆ 2005" is totally wrong.
It's Chinese tradition to write in this order, year, month and day, such as 2005å¹´9月18æ—¥ in Simplex Chinese or 二零零五年ä¹æœˆåå…«æ—¥ in Complex Chinese, but here I would propose the simple one, as
XXXX年XX月XX日, where the XX should be replaced by arabic numbers!!