具体在哪一天用哪个介词?On,IN,at?另外具体哪个时间点用哪个?

Question

具体在哪一天用哪个介词?On ,IN , at ?
另外具体哪个时间点用哪个?

Answer 1

On具体在某一天,如：on a rainy day
On April Fool's day
On April 1st,2013
at后加时间点,具体在某一个时刻,如at 12o'clock at midnight at noon
in 后加一段时间,年,月,四季等.如：in the evening in the morning in the afternoon
in July in spring