This document provides examples of how to indicate precise times and periods using the prepositions "at", "in", "on". It shows that "at" is used for specific times like hours and minutes, "in" for months, years or long periods, and "on" for days and dates. It then gives additional examples of using these prepositions to specify times, months, and dates to further illustrate their usage.
3. Examples
My birthday is in
September.
The party is in
August.
Christmas is in
December
Examples
I have English class on
Tuesday
I read a book on Friday
July goes to real plaza
on Saturday
Examples
The English class
stars at 10.00 坦
clock
I have lunch at
12:30 pm
You go to sleep at
9:20 pm.
5. 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
6. Look at these examples:
I have a meeting at 9am.
The shop closes at midnight.
Jane went home at lunchtime.
In England, it often snows in December.
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?