Home Grammar Prepositions ExercisesIn, On, At for Time Exercises

In, On, At for Time Exercises

A2-B1 Level

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Review the grammar first

Question 1 of 200 correct so far

Question 1

Complete the sentence with the correct time preposition (in, on, at).

My birthday is May.

Grammar review

Sort the time expression into one of three groups. Use in for a period such as a month, year, season or part of the day. Use on for a day or date. Use at for a precise time or point.

A few everyday phrases need special attention: at night, at lunchtime and on Friday morning. I teach British English, so this exercise uses at the weekend. The American form on the weekend is accepted too.

Quick Rule

in + period | on + day/date | at + precise time/point

1.We go away in August. (period)
2.The meeting is on Friday morning. (day)
3.Lunch starts at one o'clock. (precise time)

Next Step: Error Correction

Finished the time practice? Switch to sentence proofreading and fix the wrong preposition chunk when needed, or leave the sentence alone if it is already correct.

20 focused questions mixing time, place, duration, destination, clean, single-error, and two-error sentences.

Try Prepositions Error Correction

💡 Tips for Success

•Use IN for: months (in January), years (in 2024), seasons (in summer)
•Use ON for: days (on Monday), dates (on July 4th)
•Use AT for: specific times (at 3pm), night (at night), midnight/noon (at midnight)

Frequently Asked Questions

How do I choose between "in", "on" and "at" for time?

Use "in" for periods such as months, years and seasons; "on" for days and dates; and "at" for precise times or points. Then check for fixed phrases such as "at night" and "at lunchtime".

Do I say "at the weekend" or "on the weekend"?

Use "at the weekend" in British English and "on the weekend" in American English. Both are correct. This site puts the British form first, while accepting the American form in the exercise.