Preposition In , On , & At
Prepositions Of Time : at , in , on .
We use :
• At for a precise time .
• In for months , years , centuries & long periods .
• On for days & dates .
Look At These Examples :
• In for months , years , centuries & long periods .
• On for days & dates .
Look At These Examples :
At In On .
Precise Time Months , Years , Centuries & Long Periods Days & Dates .
At 3 o ' clock In May on Sunday .
At 10 . 30 am in summer on Tuesdays .
At noon in the summer on 6 March .
At dinner time in 1990 on 25 Dec . 2010 .
At bed time in the 1990 s on Christmas Day .
At sunrise in the next century on Independence Day .
At sunset in the Ice Age on my birthday .
At the moment in the past / future on New Year ' s Eve .
At 10 . 30 am in summer on Tuesdays .
At noon in the summer on 6 March .
At dinner time in 1990 on 25 Dec . 2010 .
At bed time in the 1990 s on Christmas Day .
At sunrise in the next century on Independence Day .
At sunset in the Ice Age on my birthday .
At the moment in the past / future on New Year ' s Eve .
• I have a meeting at 9am .
• The shop closes at midnight .
• Jane went home at lunchtime .
• In
• Do you think we will go to Jupiter in the future ?
• There should be a lot of progress in the next century .
• Do you work on Mondays ?
• Her birthday is on 20 November .
• Where will you be on New Year ' s Day ?
Notice The Use Of The Preposition Of Time At In The Following Standard Expressions :
Expression Example :
At night .
The stars shine at night .
At the weekend .
I don ' t usually work at the weekend .
At Christmas / Easter .
I stay with my family at Christmas .
At the same time .
We finished the test at the same time .
At present .
He ' s not home at present .
Try later .
Notice The Use Of The Prepositions Of Time In & On In These Common Expressions :
In On .
In the morning On Tuesday morning .
In the mornings On Saturday mornings .
In the afternoon ( s ) On Sunday afternoons .
In the evening ( s ) On Monday evening .
When we say last , next , every , this we do not also use at , in , on .
• I went to London last June . ( Not in last June )
• He ' s coming back next Tuesday . ( Not on next Tuesday )
• I go home every Easter . ( Not at every Easter )
• We ' ll call you this evening . ( Not in this evening )
• He ' s coming back next Tuesday . ( Not on next Tuesday )
• I go home every Easter . ( Not at every Easter )
• We ' ll call you this evening . ( Not in this evening )