时间点用英语表达

o'clok

at ** o'clock
at **:**

没超过30的用past
超过30的用to

at
时间段用in

准准那个是间 on the dot
he reach here five o'clock on the dot

在那个是间 at, he reached at five

大概那时间around, he reach here around five

五点半 half past five
五点十五分 quarter past five
五点四十五分 quarter to five
..........