Prepositions in time expressions

Prepositions in time expressions

1. IN

   • - in 2014, in April, in the summer, in the 19th century - in the afternoon - in  six weeks' time
   • For periods of time
     • For parts of the day
       • To say the period of time before something happens or how long something takes

2. AT

   • - at the three o' clock, at the end of the lesson, at midnight. - at breakfast -at the weekend, at Christmas, at Easter - at night Examples: I prefer to study at night. We go to the cinema at the weekend. NOTE: on the weekend is common in American English.
   • Points of time
     • Mealtimes
       • Night when talking about nights in general
         • The weekend, Christmas and Easter

3. ON

   • - on July 13th -on Sunday night - on a sunny day
   • For particular dates, days, parts of day or types of days