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The August 2020 Cumulative Update Preview for Windows includes the follow Daylight Savings Time (DST) changes:


  • Yukon currently follows the Windows time zone “(UTC-08:00) Pacific Time (US & Canada)”. Beginning with the August 2020 Cumulative Update Preview, Yukon customers will now move to a new Windows time zone, “(UTC-07:00) Yukon”.
  • Starting on November 1, 2020, Yukon will continue to remain on local time and will not adjust its clock to move back by an hour.
  • This change is for customers running the following Windows 10 versions:
    • Windows 10, version 1809
    • Windows 10, version 1903
    • Windows 10, version 1909
    • Windows 10, version 2004
  • Yukon customers running other, supported versions of Windows will see the relevant changes in the September monthly quality update.

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.

Brought to you by Dr. Ware, Microsoft Office 365 Silver Partner, Charleston SC.

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