Learning to tell time in English can be challenging for learners so consider using one of the 91 telling time worksheets in this section to give your students some extra practice. Here you can find a really comprehensive activity on time. It was created for pre-intermediate students and talks not just about times of day but also about telling time and prepositions of time. There are a lot of activities so you might consider breaking them up and using them over the course of several class periods. This way you will have plenty of time to introduce and practice material before asking students to complete exercises on their own. For even more ideas about teaching time, take a moment to read one of the related articles.
Time will come up repeatedly in ESL courses. You will likely start by talking about times of the day with beginners before you move on to telling time. Telling time is often confusing for ESL learners so make sure you dedicate a sufficient number of class periods to it. You can start by reviewing numbers and then introduce time related words and phrases. Once this topic is covered, usually in beginner courses, you will not have to discuss it in class again. If your students at higher levels seem to be having some difficulty with telling time, you may want to create a review lesson simply to refresh their memories.