Prepositions of time. 


Hello and welcome to this week’s installment of Grappling Grammar. In today’s post we are going to explain 3 prepositions that we can use to talk about different elements of time, at, in and on. Prepositions of time such as “in,” “on,” and “at” play crucial roles in specifying when an action occurs.. Let’s delve into their respective uses:


The Preposition “On”:




“On” is used to denote specific calendar days or dates.

It highlights particular days of the week.




  • I have a meeting on Monday. 
  • Our anniversary is on February 14th.
  • The concert is on Saturday.


The Preposition “At”:




“At” is employed to specify precise times.

It emphasizes specific points in time, including hours and moments.




  • The train arrives at 3 o’clock.
  • Let’s meet at noon.
  • The party starts at 7 p.m.


Differentiation between “on” and “at”:


While “on” relates to days and dates, “at” refers to precise points in time.


The Preposition “In”:




“In” is utilized to indicate longer periods, such as months, years, seasons, or general time frames.

It denotes time spans rather than specific moments.




  • I will graduate from college in May.
  • They plan to travel to Europe in the summer.
  • We expect the project to be completed in two weeks.


Differentiation between the 3 prepositions:


While “at” and “on” pinpoint precise moments or points in time, “in” highlights broader time frames or durations.


Additional uses of “in”:


“In” can also refer to locations, but in the context of time, it primarily signifies duration or inclusion within a particular period.


Understanding the usage of “in” alongside “on” and “at” contributes to clear and effective communication when discussing time frames and durations. By incorporating these prepositions appropriately, individuals can express temporal concepts with accuracy and precision.


I hope that this post was helpful for you and don’t forget to download the PDF of this document here.