1.直接法：
6:10 six ten
4:30 four thirty
2:40two forty
2.逆读法:
①半小时以内：分钟+past+小时
6:10 ten past six
3:20 twenty past three
5:14 fourteen past five
②超过半小时：（相差的）分钟+to+（下一）小时
10:35 twenty-five to eleven
4:50 ten to five
6:45 fifteen to seven（a quarter to seven）
3.恰好半个小时：half past+小时
11:30 half past eleven
6:30 half past six
4.有关15分钟
9:15 a quarter to nine
3:45 a quarter to four
5.noon和midnight
It's （twelve）noon.中午十二点
it's （twelve）midnight.晚上十二点