Semi-Formal or After Five means that tuxes are not required, nor are long dresses. An evening wedding (after 6 PM) would still dictate dark suits for him, and a cocktail dress for her. Daytime semi-formal events mean a suit for him and an appropriate short dress or dressy suit for her. % ^& j/ o/ ?, I! i+ D晚上的Semi-Formal 3 a0 z( g. B# u& y女士:小礼服, 长礼服不必 6 f& d9 C. z7 r5 x7 Z4 S男士:深色西装, 领结,燕尾服不必。