Overview
Alberta has adopted permanent Alberta Time (previously called Mountain Daylight Time or MDT in Alberta) to eliminate the previous practice of semi-annual clock changes. Its official abbreviation is “ABT.”
Previously, Albertans would advance their clocks during the spring to observe Daylight Saving Time. In the fall, clocks would be reset to Mountain Standard Time. Beginning in November 2026, clocks will no longer reset to Mountain Standard Time, and Alberta will remain on Alberta Time year-round.
Benefits of changing to Alberta Time
Permanently adopting Alberta Time will:
- reduce frustrations and disruptions associated with the previous practice of semi-annual clock changes
- improve predictability for families, businesses, schools, and services
- align Alberta with neighbouring jurisdictions that have moved away from seasonal clock changes
- reduce confusion for those who live, work, or do business across borders
Alberta will monitor the transition to permanent Alberta Time closely and will gather feedback after the first full year of operating on permanent Mountain Daylight Time to ensure the change is functioning as intended.
Selecting a time zone
Coordinated Universal Time (UTC) is the global standard for establishing time zones across the globe. Time zones are reflected as either UTC+00:00 or UTC-00:00, indicating whether the local time is ahead (+) or behind (-) the coordinated universal time—based on the Prime Meridian (zero-degree longitude), which separates the eastern and western hemispheres.
Alberta Time is equivalent to UTC-6:00.
Ensuring your devices are updated
When Alberta officially moves to Alberta Time on November 1, 2026, most smartphones, computers, tablets, vehicles and other connected devices are expected to update automatically once device manufacturers and service providers release the required updates. However, some older devices may not update automatically.
If your device shows the wrong time after November 1, first install the latest available software updates and check that automatic date, time and time zone settings are turned on. If the time is still incorrect, follow your device manufacturer’s instructions to update the time zone setting manually. You can also contact your mobile carrier, internet provider, device manufacturer, or local technology support provider for assistance.
Older or unsupported devices may no longer receive software updates. This could include some phones, tablets, smart watches, smart TVs, vehicle systems, appliances and other connected equipment. These devices may need to be adjusted manually. Check for available updates first, then contact the manufacturer or service provider if you need help.
The Government of Alberta cannot provide technical support for personal devices. For assistance, contact your mobile phone provider, internet service provider, device manufacturer, or a local technology support provider.
Keep your devices updated and watch for information from your service providers and device manufacturers as the transition approaches.