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 prepostion 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
 
 
 |