|
Prepositions Of Time (At/On/In) |
| การใช้ at/in/on for time? |
| at | in | on |
| precise time | months, years, centuries and long periods | days and dates |
| at 3 o'clock | in May | on Sunday |
| at 10.30am | in summer | on Tuesdays |
| at noon | in the summer | on 6 March |
| at dinnertime | in 1990 | on 25 Dec. 2010 |
| at bedtime | in the 1990s | 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 |
Look at these examples:
Notice the use of 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 in and 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.
|Grammar| Quiz |Dictionary | | Conversation