date and time(1)

Today, i suddenly found that i can't write down all of the month and the week. here i sum there up.
1) calendar as follows:
the month: January, Feburary, March, April, May, June, July, August, September, October, November, December.
the week: Monday, Tuesday, Wednesday(midweek), Thursday, Friday, Saturday, Sunday(first day)
2) the usage of date:
preposition; nouns; example
in; months,years,lengths of time; in feburary, in 1981, in three days;
on; days of week, weekend; on tuesday, on the weekend
at; times of day; at 17:20.
3) where prepositions are not used
we don't use the preositions with words and phrases like this:
this morning, this afternoon, home, every week, last thursday, next year, and so on