The purpose of this study was to teach telling time to the hour, half-hour, quarter to the hour, and to 5 min to students with austim spectrum disorder (ASD) or other developmental disabilities using video modeling (VM). Two research questions were asked: 1. Is there a functional relation between VM and increases in level and trend for telling time to the hour, half-hour, quarter hour, or 5 min for students with ASD and/or other developmental disabilities? 2. Will the use of the VM help students reach criterion on the task analytic steps for the process of telling time? A multiple probe (days) across participants design was used evaluate the effectiveness of the VM. The results showed student improvement of telling time, but no functional relation was found. The results showed improvement of telling time once System of Least Prompts was added to the VM.