A preposition of time is a preposition that allows you to discuss a specific time period such as a date on the calendar. Prepositions of time are the same words as prepositions of place. They are used in a different way. You can easily distinguish these prepositions, as they always discuss times rather than places.
Prepositions of time allow you to tell your readers when things are taking place. They are vital parts of speech to use in stories, as well as when writing simple communications, reports, and other items.
There may only be three prepositions of time, but the ways in which you can use them are almost endless. In the following examples, the prepositions of time have been italicized for ease of identification.
My birthday falls in January.
We’re going bowling on Friday night.
Now that my grandfather is older, he no longer drives at night.