Posts Prepositions of Time - at, in, on
Post
Cancel

Prepositions of Time - at, in, on

Rules

  • at for a PRECISE TIME
  • in for MONTHS, YEARS, CENTURIES and LONG PERIODS
  • on for DAYS and DATES
PRECISE TIMEMONTHS, YEARS, CENTURIES and LONG PERIODSDAYS and DATES
at 3 o’clockin Mayon Sunday
at 10.30amin summeron Tuesdays
at noonin the summeon 6 March
at dinnertimein 1990on 25 Dec. 2010
at bedtimein the 1990son Christmas Day
at sunrisein the next centuryon Independence Day
at sunsetin the Ice Ageon my birthday
at the momentin the past/futureon New Year’s Eve

Expressions

atinon
at nightin the morningon Tuesday morning
at the weekend*in the morningson Saturday mornings
at Christmas*/Easterin the afternoon(s)on Sunday afternoon(s)
at the same timein the evening(s)on Monday evening(s)
at present  

Note that in some varieties of English people say “on the weekend” and “on Christmas”.

Examples

  • I have a meeting at 9am.
  • The shop closes at midnight.
  • Jane went home at lunchtime.
  • In England, it often snows in December.
  • Do you think we will go to Jupiter in the future?

reference: englishclub

This post is licensed under CC BY 4.0 by the author.