in | the morning |
in | the afterrnoon |
in | the evening |
in | December |
in | April |
in | May |
in | the summer |
in | the winter |
in | the spring |
in | 1998 |
in | 2013 |
in | 1982 |
on | Monday (morning) |
on | Sunday (morning) |
on | Friday (evening) |
on | the 12th of July |
on | the 8th of April |
on | the 10th of August |
on | Saturday |
at | three o'clock |
at | six o'clock |
at | one o'clock |
at | midday |
at | midnight |
at | lunchtime |
at | night |
at | day |
at | the weekend |
at | Christmas |
at | New Year |
at | Easter |