| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | daylight hours | Northern countries | During winter, daylight hours are limited, and people may suffer from seasonal affective disorder due to the lack of sunlight. | 1 |
| 2 | daylight hours | Northern countries | Experience long days in summer and short days in winter | 1 |
| 3 | daylight saving time | Northern Countries | Practiced to make better use of daylight and save energy during long winter nights | 1 |
| 4 | daylight saving time | Northern countries | Practiced to maximize daylight during winter months | 1 |