By the order of the government of Greenland, a new law has been passed on the determination of time in the country. The law stipulates that:
- Greenland's standard time will be UTC-2 from 25 March 2023, instead of UTC-3.
- Greenland will not switch to Daylight Saving Time this year, 2023, as the standard time for Greenland will change from UTC-3 to UTC-2.
- Greenland will change to Daylight Saving Time again in 2024 and onwards.
How these time changes will be reflected, can also be understood from the table below:
|
Year |
Standard time for Greenland |
Daylight Saving Time |
|
2022 |
UTC-3 |
UTC-2 |
|
2023 |
UTC-3 (Jan – Mar) | UTC-2 (Oct – Dec) |
UTC-2 (Mar – Oct) |
|
2024 |
UTC-2 |
UTC-1 (Mar – Oct) |
|
2025 |
UTC-2 |
UTC-1 (Mar – Oct) |
|
And so on. |
UTC-2 |
UTC-1 (Mar – Oct) |
Microsoft is releasing the following Windows updates in support of this decision. This change is available in the September 2023 non-security preview update released in late September 2023 for the 20H2 and newer versions of Windows 10 and 11. All other supported Windows versions will receive the update as part of the next monthly quality update scheduled to release on October 10, 2023.
All Windows updates containing this fix have the following release note text:
- This update includes changes to Greenland daylight saving time (DST).
The KB article numbers that support the Greenland DST change are listed below:
|
Product |
KB Article ID |
|
Windows 11, version 22H2 |
|
|
Windows 11, version 21H2 |
|
|
Windows 10, version 22H2; Windows 10, version 21H2 |
|
|
Windows Server 2022 |
|
|
Windows 10 Enterprise LTSC 2019; Windows Server 2019 |
|
|
Windows 10 Enterprise LTSC 2016; Windows Server 2016 |
|
|
Windows 10 Enterprise 2015 LTSB |
|
|
Windows Server 2012 |
|
|
Windows Server 2008 SP2 |
|
|
Windows 7.0 SP1 |
A minor known issue in the historical message string shown in the “Date and time” app might affect a few users. The Daylight-Saving Time for the period of January 1, 2023, to March 31, 2023, will show incorrectly on the app’s message string (marked in red below) but will not affect any application's time display, real or historical data.
Screenshot of the Date and Time app showing a historical DST message for Greenland.
For Microsoft's official policy on DST and time zone changes, please see Daylight saving time help and support. For information on how to update Windows to use the latest global time zone rules, see How to configure daylight saving time for Microsoft Windows operating systems.