Word FaQ

IN/AT/ON Prepositions

For time:
In an older FAQ, we talked about the usage of in, at, and on pertaining to places. Now let’s look at the proper usage for them when referring to time.

IN:
Use “in” for months, years, and periods of time....
In January
In 1978
In the twenties

Use “in” for a period of time in the future...

In a few weeks
In a couple of days

AT:
Use “at” with precise time.
At 10:30PM
At six o’clock

ON:
Use “on” with days of the week.
On Thursday
On Wednesdays

Use “on” with specific calendar days.
On Christmas day
On Halloween
On July 22nd

ALSO…

We say “in the morning”, “in the afternoon”, “in the evening”, BUT... we say “at night”.