在下午三點英語如何說

1、At three in the afternoon.例句：Im sorry, I wont be free until 12 on Tuesday. Can I see him at three in the afternoon that day? 對不起，我星期二12點之前沒空。可以訂在那天下午的三點嗎？

2、At 3 p.m.例句：You know, I bought it at 3 p. m. yesterday. 你知道，我昨天下午3點買的。