Jan Mayen, Svalbard And Jan Mayen
Jan Mayen follows Norway’s clock: Central European Time in winter and Central European Summer Time during daylight saving. Its remote Arctic position produces dramatic seasonal changes in sunrise, daylight, and darkness.
Olonkinbyen, Svalbard And Jan Mayen
Saturday, 24 October 2026
UTC+2 · Arctic/Longyearbyen
Time and sun data for Olonkinbyen — the largest city of Jan Mayen
The sun in Olonkinbyen
Sunrise 10:35 AM Solar noon 2:20 PM Sunset 6:06 PM Daylight 7 h 31 min Night 16 h 29 min Civil twilight 9:23 AM – 7:17 PM
Svalbard And Jan Mayen · 2 cities
Largest cities
- Olonkinbyen 14
All cities
Current time in Jan Mayen, Svalbard And Jan Mayen
The local time shown for Jan Mayen should be read as Norwegian civil time. In winter, the island uses Central European Time, abbreviated CET. When Norway observes daylight saving, Jan Mayen changes to Central European Summer Time, or CEST.
This makes the clock straightforward even when the daylight is not. Jan Mayen shares its civil-time rules with mainland Norway, so appointments can be arranged without calculating a separate island offset. The seasonal clock change follows the Norwegian schedule rather than the island’s sunrise.
The clock may agree with Oslo, but the Arctic sky keeps its own unconventional office hours.
Time zone and daylight saving
CET is one hour ahead of Coordinated Universal Time. CEST is two hours ahead. The change between them affects displayed clock time, but it does not create or remove daylight; it merely shifts how daylight falls against the numbered hours.
Use CET when standard time is in effect. Use CEST while Norway observes daylight saving. Check the date before converting a future appointment. Do not infer the local time from the brightness of the sky.
That final point matters particularly here. At high latitude, noon can occur during a dim season, while nighttime on the clock can remain light during another part of the year. A live time display is therefore more dependable than visual clues.
Settlements and sunrise on Jan Mayen
Jan Mayen has no cities in the ordinary sense and no permanent civilian population. Olonkinbyen is the island’s principal staffed settlement, associated with Norwegian personnel working there. Naming it as a “largest city” would overstate both its size and its status.
Sunrise information needs similar care. Around the brighter part of the year, the sun can remain above the horizon through the night. Around the darker part, it can remain below the horizon. Between those periods, sunrise and sunset change rapidly from day to day.
Terrain and weather also affect what an observer actually sees. Jan Mayen is volcanic and often cloudy, so a calculated sunrise marks the sun’s geometric appearance at the horizon, not a guarantee of visible sunshine. For planning outdoor work, combine the listed sunrise with twilight, weather, and local operational guidance.
Questions and answers
- Does Jan Mayen use the same time as mainland Norway?
- Yes. It follows Norwegian standard time and daylight-saving practice.
- What is the largest city on Jan Mayen?
- There is no city. Olonkinbyen is the main staffed settlement on the island.
- Why might no sunrise be listed?
- At this latitude, the sun can stay continuously above or below the horizon during part of the year.