HOW TO USE THE PREPOSITIONS OF TIME

In, at, on and no preposition with time words:

Prepositions of time - here's a list of the time words that need 'on', 'in', 'at' and some that don't need any preposition. Be careful - many students of English use 'on' with months (it should be 'in'), or put a preposition before 'next' when we don't need one.

at	-times: at 8pm, at midnight, at 6:30 -holiday periods: at Christmas, at Easter -at night -at the weekend -at lunchtime, at dinnertime, at breakfast time
on	-days: on Monday, on my birthday, on Christmas Day -days + morning / afternoon / evening / night: on Tuesday morning -dates: on the 20th of June
in	-years: in 1992, in 2006 -months: in December, in June -decades: in the sixties, in the 1790s -centuries: in the 19th century -seasons: in winter, in summer -in the morning, in the afternoon, in the evening
no prep	next week, year, month etc last night, year etc this morning, month etc every day, night, years etc today, tomorrow, yesterday