MC673921 – Interim guidance for Greenland DST changes 2023

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check before: 2023-09-20


SharePoint, Windows


Windows Desktop, World tenant


Change type:

Admin impact



According to the new law by the government of Greenland, this year, the country will not switch to Daylight Saving Time. Instead, Greenland’s standard time will permanently shift to UTC-2, which is the same time that has been observed since March 25, 2023. In 2024, Greenland will resume annual Daylight Saving Time between March and October by temporarily shifting from UTC-2 to UTC-1. In support of this decision, Microsoft will release Windows updates in late September, 2023 to the latest versions of Windows 11 and Windows 10. All other supported versions of Windows will receive the update as part of the October 2023 monthly quality release.

When will this happen:
Since March 25, 2023, Greenland has observed the UTC-2 time, which is the country’s new standard time.
Late September 2023: Windows non-security preview release will include the update to address this time change for Windows 11 and Windows 10, versions 22H2 and 21H2.
October 10, 2023: Windows monthly quality release will include the update to address this time change for all supported versions of Windows.
March-October 2024: Greenland will temporarily shift to UTC-1 to observe the new annual Daylight Saving Time. Devices updated with the September/October 2023 updates will reflect these changes automatically.

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