英语当中,年月日前加哪个介词on还是in；月日/年月的话呢?

记住,以下内容对中考和高考非常有用,要仔细阅读和背出来：
in January
in winter
in 1999;
in the morning/ afternoon /evening.
in the daytime
on Monday,
on Sunday afternoon,
on July 1st, 2011
at six o’clock,
at three thirty.
at night,
at noon,
at this time of year.
in a year
in spring
in September
in a week ,
in two weeks
in two weeks' time
on Monday
on Monday afternoon
on March 7th, 2000
at eight o’clock
at this time of day /year
at the moment
in the summer / winter holiday
at Christmas
on Christmas Day / Eve / afternoon
on the evening of May 31st,2011
on National Day
on Children's Day
on the day of my arrival / departure
on the day she comes
in the year I was born
on the very Monday she fell ill
on Thanksgiving Day
during our stay in Japan
in Tom's absence
in the presence of my friends
on our way to the library
on their first trip to Shanghai
on a voyage inthe Atlantic Ocean
in the mornig / afternoon/ evening
on a summer morning /afternoon/ evening
on the morning/ afternoon/ evening of February the third, 2012
on a weekend morning/ afternoon/ evening

年，月 前用in
具体到日期用 on

记住一句口诀 年 月 日 in in on

这还不简单 on

年月前in
日前用on

具体到日期的话用on。有一个口诀就是大T in, 小T at， 具体T 用on。T是time。

ON表是具体的某一天或某一天的上午或下午
IN表示在一段时间内