| Value | Category |
|---|---|
| 1 | During day (between 6:00 an 6 pm) |
| 2 | During the evening or night (after 6:00 pm) |
| 3 | Day and evening (all day) |
| 4 | Week-end |
| 5 | Sometimes during the day, sometimes during the evening |
| 6 | After school |
| 7 | Before school |
| 8 | Before and after school |
| 9 | Week-end |