3. Make a chart for each day of the week, Monday through Friday, with the 24 hour class schedule. Don't forget to add special activities like media center, computer lab, music, etc. 4. For one week in your class and with your family, use 24 hour time whenever you are talking about time. For instance, "School is out at 1430." Ask questions to your other classmates using 24 hour time. "Are you done with your homework by 1800?" 5. Interview friends, family or other adults and ask them where they've used 24 hour time. Make a list of all places or situations where it's used.