Fill in the correct prepositions of time to complete the sentences.
1)My birthday is __________ December.
2)I have been waiting for you _____ six o' clock.
3)The train leaves _____ 6 p.m. We should reach the station _____ 5.45.
4)He's coming back _____ Tuesday.
5) The library will be shut _____ 1 _____ 2 p.m.
6) We stayed up for you _____ midnight.