"A national passport or official travel document valid for more than 3 months beyond the validity of the requested visa. Your British Residence permit (stamped in passport or in the form of an identity card) must also exceed by more than 3 months the validity of the requested visa. "
这段是从法国驻英使馆的网页上的说明,说得很清楚,不管是护照还是英国签证的有效期都必须比所要申请的申根签证结束日期长3个月.如果楼主英国签证9月到期,我的理解是你的申根签证最多只能给到5月或6月.当然这只是法国的规定,其它国家我不太清楚.
PHBROW是正解