While talking about time in English, there are three words that are often used. In, on and At, are prepositions that support a relationship between two words in a sentence. Other prepositions in English can be quite easy to understanding, like under, behind, next to, over, etc…. But these two letter prepositions, in on and at seem to cause the most confusion for people who are first learning english. Here is a cheat sheet for you to help you understand when to put them to the