Astronomical observations Longyearbyen (Svalbard and Jan Mayen)
| Sunrise | 01 h 00 am |
|---|---|
| Transition hour | 11 h 40 am |
| Sunset | 01 h 00 am |
| Starting of civil twilight | 09 h 11 am |
| Termination of civil twilight | 02 h 10 pm |
| Duration of sunshine |
| Sunrise | 12 h 00 am |
|---|---|
| Sunset | 03 h 20 pm |
| Fraction illuminated | 20 % (premier croissant) |