It was in 2007, so I should remember it, but honestly, I don't! ~lol

Do you remember CE5? It was very much fun when MS didn't patch the US DST timing change and there were still hundreds of thousands of embedded devices with that in the field.

optimism

Microsoft's Canada timezone troubles leave admins fixing calendars, pretending they're in Bogota

Microsoft has discovered once again that few things strike fear into the heart of a software engineer quite like a government deciding to fiddle with the clocks.

Parts of Canada stopped observing seasonal clock changes on November 1, leaving affected areas of British Columbia, Alberta, and Manitoba permanently on UTC-07:00, UTC-06:00 and UTC-05:00 respectively. Unfortunately, Microsoft's sprawling software empire hasn't entirely caught up.

 problems across a chunk of its software estate, leaving some customers facing incorrect times, broken schedules and a collection of workarounds while Redmond catches up.

Outlook users have been left with the most homework. Switching to the new Canadian time zones won't automatically update existing calendar entries, meaning that meetings scheduled after November 1 are potentially an hour out of whack.

 users to change their Outlook calendar time zone, then update upcoming events and meetings to use it. For meetings involving other people, only the organizer can make the change.

tech

> **Microsoft's Canada timezone troubles leave admins fixing calendars, pretending they're in Bogota**
>
> Microsoft has discovered once again that few things strike fear into the heart of a software engineer quite like a government deciding to fiddle with the clocks.
>
> Parts of Canada stopped observing seasonal clock changes on November 1, leaving affected areas of British Columbia, Alberta, and Manitoba permanently on UTC-07:00, UTC-06:00 and UTC-05:00 respectively. Unfortunately, Microsoft's sprawling software empire hasn't entirely caught up.
>
> The company has[ confirmed](https://support.microsoft.com/en-us/servicing/os/windows/docs/2026/10/canada-2026-time-zone-changes) problems across a chunk of its software estate, leaving some customers facing incorrect times, broken schedules and a collection of workarounds while Redmond catches up.
>
> Outlook users have been left with the most homework. Switching to the new Canadian time zones won't automatically update existing calendar entries, meaning that meetings scheduled after November 1 are potentially an hour out of whack.
>
> Microsoft [advises](https://support.microsoft.com/en-us/outlook/calendar/timezone-changes-for-canada-provinces) users to change their Outlook calendar time zone, then update upcoming events and meetings to use it. For meetings involving other people, only the organizer can make the change.
>
> [**...read more at theregister.com**](https://www.theregister.com/software/2026/11/02/microsofts-canada-timezone-troubles-leave-admins-fixing-calendars-pretending-theyre-in-bogota/5306934)