Månuppgång och månnedgång Longyearbyen, Svalbard och Jan Mayen
| Datum | Månuppgång | Månnedgång | Månuppgång |
|---|---|---|---|
| 1 december 2018 | - | 14:44 | - |
| 2 december 2018 | 01:00 | 13:56 | - |
| 3 december 2018 | 03:38 | 13:06 | - |
| 4 december 2018 | 06:31 | 11:57 | - |
| 5 december 2018 | - | 00:00 | 00:00 |
| 6 december 2018 | - | 00:00 | 00:00 |
| 7 december 2018 | - | 00:00 | 00:00 |
| 8 december 2018 | - | 00:00 | 00:00 |
| 9 december 2018 | - | 00:00 | 00:00 |
| 10 december 2018 | - | 00:00 | 00:00 |
| 11 december 2018 | - | 00:00 | 00:00 |
| 12 december 2018 | - | 00:00 | 00:00 |
| 13 december 2018 | - | 00:00 | 00:00 |
| 14 december 2018 | 15:32 | 19:57 | - |
| 15 december 2018 | 14:18 | 22:42 | - |
| 16 december 2018 | - | - | 13:30 |
| 17 december 2018 | - | 01:07 | 12:45 |
| 18 december 2018 | - | 03:37 | 11:54 |
| 19 december 2018 | - | 06:47 | 10:26 |
| 20 december 2018 | - | 00:00 | 00:00 |
| 21 december 2018 | - | 00:00 | 00:00 |
| 22 december 2018 | - | 00:00 | 00:00 |
| 23 december 2018 | - | 00:00 | 00:00 |
| 24 december 2018 | - | 00:00 | 00:00 |
| 25 december 2018 | - | 00:00 | 00:00 |
| 26 december 2018 | - | 00:00 | 00:00 |
| 27 december 2018 | - | 14:39 | 19:08 |
| 28 december 2018 | - | 13:18 | 22:20 |
| 29 december 2018 | - | 12:25 | - |
| 30 december 2018 | 01:01 | 11:37 | - |
| 31 december 2018 | 03:44 | 10:38 | - |
