Individuals with intellectual and developmental disabilities (IDD) often have difficulties with self-management skills such as scheduling daily tasks for educational, vocational, and leisure purposes. In this study, we used a multiple probe across participant design to evaluate the effects of constant time delay in teaching young adults with IDD the necessary steps to schedule events and set reminders using the Calendar application (app). Three students with IDD in a postsecondary education setting participated in this study and acquired the steps required for programming events and their reminders in the Calendar app. In addition, two participants independently attended the scheduled events without additional reminders from adults. Limitations, future research, and practical implications are discussed.