Time Prepositions

1. On

1.1. days: on Monday, on my birthday, on Christmas Day dates: on the 20th of June

1.2. days + morning / afternoon / evening / night: on Tuesday morning

2. In

2.1. years: in 1992, in 2006

2.2. months: in December, in June

2.3. decades: in the sixties, in the 1790s

2.4. centuries: in the 19th century

2.5. seasons: in winter, in summer

2.6. in the morning, in the afternoon, in the evening

3. At

3.1. holiday periods: at Christmas, at Easter

3.2. at night

3.3. at the weekend

3.4. at lunchtime, at dinnertime, at breakfast time

3.5. times: at 8pm, at midnight, at 6:30

4. No Preposition

4.1. next week, year, month etc

4.2. last night, year etc

4.3. this morning, month etc

4.4. every day, night, year etc

4.5. today, tomorrow, yesterday