三个月

  Hiya. 6 months in advance--this is the government's requirement. However, you could extend your visa at the local Chinese Embassy in Russia, but they charge a little more than if you do that at Qingdao. Hope this helps.

  二零零七年一月一日中国护照新规定:中国护照没有延期.只有补办,只能换新护照~~~~ 绝对可靠,使馆参赞跟我说的~~~~ 我也是俄罗斯的