The most important prepositions of time include ‘on’, ‘in’, and ‘at’.
- For days of the week, use the preposition ‘on’.
- On Tuesday, I will go to the gym.
- For months and years, use the preposition ‘in’.
- In July, I went to Hawaii.
- In 2018, I graduated university.
- For exact time, use ‘at’.
- I’ll pick you up at 12:30PM.
Other important prepositions of time include:
| Preposition | Meaning | Example |
| Around | Could be a little earlier/later | He is coming around 1PM. |
| Before | Earlier than | I’m free before noon. |
| By | No later than | I need to turn it in by midnight. |
| For | Duration | I worked on this paper for seven hours. |
| From | Starting point | I work from 9AM to 5PM. |
