| Value | Category |
|---|---|
| 1 | Early morning, between 6 a.m. and 8 a.m. |
| 2 | Between 8 a.m. and 11 a.m. |
| 3 | Around midday |
| 4 | Early afternoon (1 p.m. - 3 p.m.) |
| 5 | Late afternoon (between 3 p.m. and 6 p.m.) |
| 6 | Between 6 in the evening and 9 at night |
| 7 | Late at night (after 9 p.m.) |
| 8 | Any time |
| 98 | Don't Know/Not Known |
| 99 | Refused/No response |
| Sysmiss |