主申请人已经拿到PR，配偶未达到5年，仍需要签T2 dependent 签证，请问最早可以提前多久申请面签？
通过查询网上资料，文件《Appendix FM 1.0 Family Life (as a Partner or Parent)》说明了配偶签是最多提前28天 （page 14），但是也明确说明，不适合PBS dependent签证。
有谁知道，PBS T2 dependent可以最早提前多久申请？ 谢谢！
PBS T2的dependent和普通的是一样的吧，表格都是一份。如果是5年route提前太久反而不好，到时候批下来会离5年有gap，还得做第三次，建议提前28天，不要多，如果赶时间可以定premier service
已申请下来。
确实，需要最多提前28天。再早了，看caseworker具体情况。
'UK Visas & Immigration recommend that any application to extend should be
made no earlier than 28 days before the visa expiry date.
However, there is nothing to prevent an applicant from applying outside of
the 28 day timeframe but it may impact on any future application for
Indefinite Leave to Remain (ILR) as the applicant may fall short of the
qualifying due to extending / applying early.’