Cloud SQL for SQL Server: Canadian time zones lag one hour from Nov 1

Starting November 1, 2026, at 02:00 a.m. local time, Cloud SQL for SQL Server instances that evaluate certain local Canadian time zones (across Alberta, British Columbia, Manitoba, and Northwest Territories) will lag by one hour because the instances still follow the autumn fall back schedule. Stored timestamp data isn't modified.

What should I do?

For SQL Server, Microsoft has published guidance, recommending updating each applicable instance's time zone to the Windows time zone with the matching fixed offset.

Update each instance's time zone to the Windows time zone with the matching fixed offset:

Jurisdiction Current time zone Recommended time zone Fixed offset British Columbia Pacific Standard Time Yukon Standard Time UTC-07:00 Alberta / Inuvik, NWT Mountain Standard Time Canada Central Standard Time UTC-06:00 Manitoba Central Standard Time Eastern Standard Time (Mexico) UTC-05:00

You can make the change in the Google Cloud console (Edit instance > Flags and parameters > Time zone) or with gcloud:

gcloud sql instances patch INSTANCE_NAME \
  --project=PROJECT_ID \
  --time-zone="Yukon Standard Time"