At Johan de Witt, a lesson lasts 70 minutes. We work with two different schedules: Schedules A and B. On Tuesdays, students at Johan de Witt have lessons until 1:00 PM due to a meeting.
Schedule A
| Lesson time | start time | end times | duration |
| 1 | 08:00 | 09:10 | 70 |
| break 1 | 09:10 | 09:30 | 20 |
| 2 | 09:30 | 10:40 | 70 |
| 3 | 10:40 | 11:50 | 70 |
| break 2 | 11:50 | 12:10 | 20 |
| 4 | 12:10 | 13:20 | 70 |
| 5 | 13:20 | 14:30 | 70 |
| 6 | 14:30 | 15:40 | 70 |
| break 3 | 15.40 | 15.50 | 10 |
| 7 | 15:50 | 17.00 | 70 |
Schedule B
| Lesson time | start time | end times | duration |
| 1 | 08:00 | 09:10 | 70 |
| 2 | 09:10 | 10:20 | 70 |
| break 1 | 10:20 | 10:40 | 20 |
| 3 | 10:40 | 11:50 | 70 |
| 4 | 11:50 | 13:00 | 70 |
| break 2 | 13:00 | 13:20 | 20 |
| 5 | 13:20 | 14:30 | 70 |
| 6 | 14:30 | 15:40 | 70 |
| break 3 | 15.40 | 15.50 | 10 |
| 7 | 15:50 | 17.00 | 70 |
On some dates, there's a shortened schedule, for example, when there's a parent afternoon. These dates are listed in the annual calendar. The shortened schedule applies:
Schedule A
| Lesson time | start time | end times | duration |
| 1 | 08:00 | 08:40 | 40 |
| break 1 | 08:40 | 09:00 | 20 |
| 2 | 09:00 | 09:40 | 40 |
| 3 | 09:40 | 10:20 | 40 |
| 4 | 10:20 | 11:00 | 40 |
| break 2 | 11:00 | 11:20 | 20 |
| 5 | 11:20 | 12:00 | 40 |
| 6 | 12:00 | 12:40 | 40 |
| break 3 | 12:40 | 12:50 | 10 |
| 7 | 12:50 | 13:30 | 40 |
Schedule B
| Lesson time | start time | end times | duration |
| 1 | 08:00 | 08:40 | 40 |
| 2 | 08:40 | 09:20 | 40 |
| break 1 | 09:20 | 09:40 | 20 |
| 3 | 09:40 | 10:20 | 40 |
| 4 | 10:20 | 11:00 | 40 |
| break 2 | 11:00 | 11:20 | 20 |
| 5 | 11:20 | 12:00 | 40 |
| 6 | 12:00 | 12:40 | 40 |
| break 3 | 12:40 | 12:50 | 10 |
| 7 | 12:50 | 13:30 | 40 |