Time: At / In / On - All Things Grammar - Free Printable

Here's the completed worksheet with correct prepositions of time (at, in, on) filled in, followed by a clear explanation of the rules.

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✔ Completed Answers:

1. He always gets up at seven o’clock in the morning.
2. Our flight to London leaves on the second of July.
3. Sharon’s birthday is in January.
4. My grandfather was born in 1953.
5. I stayed up really late last night. I went to bed at midnight.
6. Did you do anything special on your birthday?
7. Stewart usually goes cycling in the evenings after work.
8. In Canada, it always snows in winter.
9. Would you like to join us for dinner on Thursday?
10. I like to read stories to my kids at bedtime.
11. That store doesn’t open on Sunday mornings.
12. We sometimes eat our lunch in the cafeteria at noon.
13. Hurry up! The train will leave in a few minutes.
14. My brother often goes swimming on the weekend.
15. Our classes finish at three in the afternoon.
16. The Beatles were a popular music band in the 1960s.
17. I sometimes get up at sunrise and do exercise.
18. What time does he go to work in the morning?
19. Do you and your family ever go traveling in summer?
20. What time do you go to bed at night?

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📌 Explanation: Rules for “at”, “in”, “on” (Time Prepositions)

These prepositions are used based on how specific or general the time reference is:

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✔ Use “AT” for:

- Specific times of day:
→ *at 7:00*, *at midnight*, *at noon*, *at sunrise*, *at bedtime*
*(Example: He wakes up at 6:30.)*

- Exact moments or points in time:
→ *at the moment*, *at that time*, *at night* (common phrase)
*(Example: I’ll call you at night.)*

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✔ Use “IN” for:

- Months, years, decades, centuries:
→ *in January*, *in 1999*, *in the 1980s*, *in the 21st century*

- Parts of the day (general):
→ *in the morning*, *in the afternoon*, *in the evening*
*(Note: NOT “at morning” — unless it’s “at dawn” or “at sunrise”)*

- Seasons:
→ *in summer*, *in winter*, *in spring*, *in fall*

- Duration or future time expressions:
→ *in a few minutes*, *in two weeks*, *in an hour*

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✔ Use “ON” for:

- Days of the week:
→ *on Monday*, *on Friday*, *on weekends* (note: “on the weekend” is common in American English)

- Dates and specific days:
→ *on July 4th*, *on the second of July*, *on my birthday*, *on Christmas Day*

- Special occasions or named days:
→ *on New Year’s Eve*, *on Thanksgiving*, *on Easter Sunday*

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⚠️ Important Notes & Common Mistakes:

- ✘ *“at night”* — CORRECT (fixed expression)
✔ Not “in night” or “on night”

- ✘ *“in the weekend”* — INCORRECT in American English
✔ Use *“on the weekend”* (AmE) or *“at the weekend”* (BrE)

- ✘ *“on the morning”* — WRONG
✔ Use *“in the morning”*

- ✘ *“at 2025”* — WRONG
✔ Use *“in 2025”*

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🎯 Summary Mnemonic:

> At = Actual clock time
> On = On a date or day
> In = Interval or general period (month, season, year, part of day)

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You now have all the correct answers + the reasoning behind them! Let me know if you’d like a printable version or practice quiz 😊