沒有時態(tài),這是個介賓短語,時態(tài)只體現(xiàn)在謂語上,如：
He always has a walk in the evening.他老是在晚上散步,是一般現(xiàn)在時態(tài)
He worked in the evening when he was in the countryside,當(dāng)他在鄉(xiāng)下的時候,他老是在晚上工作,是一般過去時態(tài).