DOyouremembertheafternoon(onwhich)wefirstmetthreeyearsago?为什么这句话中的关系代词是onwhich而不是inwhich

Question

DO you remember the afternoon (on which)we first met three years ago?
为什么这句话中的关系代词是on which而不是in which

Answer 1

在某一天的下午应该是用on ,例如,三年前的一个下午,on the afternoon of three years ago,此处应考虑对应关系,所以是on 而不是in