| PREPOSITION | USAGE | EXAMPLES |
| At | For times (plus ‘weekend’ and ‘night’) | At seven o’clock. At 6.30am. At the weekend. |
| On | For days and dates | On Tuesday. On the 12th October. On my birthday. |
| In | For months and years (plus ‘morning’ ‘afternoon’ and ‘evening’) | In June. In 2015. In the evening. |
| Until | Up to a certain date/time | Until tonight Until next year. Until 5pm. |
| Since | From a date in the past until now | Since last year. Since 2001.Since I was born. |
| During | In a period of time (never used with a number) | During the summer. During my vacation During the meeting. |
| For | Duration, for a period of time | For 10 years. For a long time. For over an hour. |
| By | Before, for a deadline | By 5pm today. By the time I am 40. By Friday evening. |
