What are prepositions of time?

All prepositions show the relationship between two parts of a phrase or sentence. Prepositions of time express when something happens.

The three most common prepositions of time are in, on, and at (e.g., “on Tuesday,” “at 7:30 p.m.,” and “in March”).

Other examples of prepositions of time include “since” (e.g., “since last week”), “for,” (e.g., “for a year”), and “until” (e.g., “until midnight”).

QuillBot’s Grammar Checker can help you ensure you’re using prepositions correctly in your writing.