From 2027, Copenhagen and Nuuk lose an hour of overlap
Greenland's parliament, Inatsisartut, has voted to move most of the country back to UTC-3 standard time on October 31, 2027. The gap between Nuuk and Copenhagen will go from three hours to four, all year, and the two cities will share four work hours instead of five.
What changes on October 31, 2027
Most of Greenland has used UTC-2 as standard time since 2023, a zone closer to Europe. Denmark is on UTC+1 in winter and UTC+2 in summer. Greenland, with a few exceptions, is on UTC-2 in winter and UTC-1 in summer. The gap is three hours in both seasons, because Greenland is for now keeping summer time in step with Denmark.
On October 31, 2027, when Denmark sets its clocks back one hour at the end of summer time, Greenland will set its clocks back two. After that, most of Greenland will be on UTC-3 in winter and UTC-2 in summer, four hours behind Denmark all year. Danish broadcaster DR reported the vote on November 12, 2026.
DR writes that with the current time zone, Greenland is one hour further from the time when the sun is highest in the sky at midday. The business community in Greenland had previously argued that moving the clock an hour further from Europe could be expensive and cumbersome for companies and air traffic.
Thomas Ørum Kristensen, who owns a waste company in Tasiilaq in East Greenland, welcomed the vote. He told DR: "We are people who live off nature. We are so close to nature that we can feel that there is a difference." He also said: "It affects me too. When the clock strikes 12 in the day, the sun stands completely wrong up in the sky." On the cost to business, he told DR: "We didn't have problems with that in the past."
What a four-hour gap does to the workday
Time of Meeting counts work hours as 9:00–17:00 local time in every city. 7:00–9:00 and 17:00–19:00 count as early or late.
Today the gap is three hours, in winter and in summer. Copenhagen's 12:00–17:00 is Nuuk's 9:00–14:00, a five-hour shared window.
From October 31, 2027 the gap is four hours, again in both seasons. Copenhagen's 13:00–17:00 is Nuuk's 9:00–13:00, a four-hour window. A noon call from Copenhagen, which today starts the Nuuk workday, would start at 8:00 in Nuuk, an early slot.
Calendars will need the 2027 update
Phones, computers and calendar apps get their time zones from the IANA time zone database. Nuuk and most Greenland towns, including Tasiilaq, use America/Nuuk. As of November 13, 2026, the latest IANA release is 2026f, from late October 2026, and it does not yet include the 2027 change.
Time of Meeting stores no time zone rules of its own. Each city carries an IANA zone name. The planner uses the time zone data in your browser. The assistant uses the data in Cloudflare's systems. We don't need to change the site. It uses live IANA rules and will follow the change on its own once browsers and Cloudflare update. Cloudflare doesn't say when it updates its copy, so the assistant may lag.
If you look at a date after October 31, 2027 today, Time of Meeting still shows the old rule: Nuuk on UTC-2, and a three-hour gap with Copenhagen.
If you already have recurring meetings between Copenhagen and Nuuk after October 2027, check them again once your phone or computer has the update. Calendar files you already downloaded keep the times they were made with.
Try it
Open Time of Meeting, add Copenhagen and Nuuk, and look at today's overlap. You should see five shared work hours: 12:00–17:00 in Copenhagen, 9:00–14:00 in Nuuk.
If you jump ahead to a weekday after October 31, 2027, you will still see that same three-hour gap until your browser or computer has the new time zone data.