It's at seven o'clock 整点 7点整
It's at half past seven or It's seven-thirty7点30
It's at seven fifteen or quarter past seven 7点15；7点一刻
It's at seven fifty-five or five to eight 7点55； 差5分到8点
15分钟 = 一刻钟 = quarter ['kwɔːtə]
30分钟 = 半小时 = half
appointment 预约；约会
TV program TV节目
Time of the day
in the morning 在早上
in the afternoon 在下午
in the evening 在晚上；傍晚
at noon 正午 12:00
at night 在夜晚
at midnight 在凌晨0:00