Canada is about to break your scheduler

Starting November 1, 2026, British Columbia, Alberta, Northwest Territories, and Manitoba will stop switching clocks for winter time. Changes in the tzdata database break schedulers and cron jobs: Manitoba gave only 45 days' notice instead of the recommended year.

• British Columbia, Alberta, Northwest Territories, and Manitoba to cancel winter time switch
• Manitoba gave 45 days' notice of regime change instead of recommended year
• Since 2020, 26 of 31 tzdata releases changed future timestamps
• Go, Node, Postgres, and MySQL update tzdata differently, complicating fixes