The rule as a picture, 5 multiple-choice questions, 3 sentences to correct and a short writing task. Free to print and copy for your class or for self-study.
Want the explanation first? Read the On Time vs In Time lesson
On time means at the planned time, not late: The train left on time. In time means early enough, before it's too late: We got there in time to see the start.
The train arrived on time.
We got to the station in time to buy coffee.
Write two sentences about your own life: one with On time and one with In time. Then explain the difference to a partner.
Answers will vary. Check that each sentence follows the rule on page 1, or paste them into Clarigram to have them checked.