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Other
Effective Start Date Time
09/22/2026 9:33 pm
Subject
Alberta Time Change Effective November 1, 2026
Notice Text
The Province of Alberta recently announced the adoption of a permanent Alberta Time (ABT). Effective November 1, 2026, Alberta will remain on MDT (UTC-6) year-round and will no longer participate in the semi-annual clock changes.
Alberta's new time system (ABT) | Alberta.ca
What is changing?
- Alberta clocks will not be adjusted backward 1 hour to Mountain Standard Time in November
- Alberta Time will remain MDT (UTC-6) throughout the year
- NAESB nomination and scheduling timelines will remain in CCT therefore stakeholders in Alberta and other jurisdictions affected by time zone changes should be aware of the impacts of these timelines within their local region Example:
o Alberta Time = CCT during the winter months (Nov Mar)
o Alberta Time = CCT 1 hour during the summer months (Mar Nov)
-
To maintain alignment with NAESB timelines and
Alberta's transition to ABT, TC Energy's Call Center hours will be adjusted as
follows:
Mar - Nov: 7:00 am 9:00 pm ABT
Nov - Mar: 7:00 am - 10:00 pm ABT
NGTL
- There are no planned changes to the NGTL Tariff and therefore the gas day will continue to begin and end at 08:00 Mountain Standard Time
- Supply Demand balancing deadline remains at 10:30 MST (11:30 ABT)
- NAESB deadlines will continue to be followed:
o NAESB Deadlines - Effective November 1, 2026
o NGTL Timelines - Effective November 1, 2026
Foothills
- There are no planned changes to the Foothills Tariff and therefore the gas day will continue to begin and end at 09:00 Central Clock Time
- NAESB deadlines will continue to be followed:
o Foothills Nominations Timelines - Effective November 1, 2026
Mainline
- There are no planned changes to the Mainline Tariff and therefore the gas day will continue to begin and end at 09:00 Central Clock Time
- Mainline open season deadlines remain at 09:00 Central Clock Time
- NAESB deadlines will continue to be followed:
o Mainline Nomination Timelines - Effective November 1, 2026
For questions, please contact the Pipeline at 403-920-7473 or Toll Free at 1-877-920-7473 or nominations@tcenergy.com
Other
Effective Start Date Time
09/22/2026 9:33 pm
Subject
Alberta Time Change Effective November 1, 2026
Notice Text
The Province of Alberta recently announced the adoption of a permanent Alberta Time (ABT). Effective November 1, 2026, Alberta will remain on MDT (UTC-6) year-round and will no longer participate in the semi-annual clock changes.
Alberta's new time system (ABT) | Alberta.ca
What is changing?
- Alberta clocks will not be adjusted backward 1 hour to Mountain Standard Time in November
- Alberta Time will remain MDT (UTC-6) throughout the year
- NAESB nomination and scheduling timelines will remain in CCT therefore stakeholders in Alberta and other jurisdictions affected by time zone changes should be aware of the impacts of these timelines within their local region Example:
o Alberta Time = CCT during the winter months (Nov Mar)
o Alberta Time = CCT 1 hour during the summer months (Mar Nov)
-
To maintain alignment with NAESB timelines and
Alberta's transition to ABT, TC Energy's Call Center hours will be adjusted as
follows:
Mar - Nov: 7:00 am 9:00 pm ABT
Nov - Mar: 7:00 am - 10:00 pm ABT
NGTL
- There are no planned changes to the NGTL Tariff and therefore the gas day will continue to begin and end at 08:00 Mountain Standard Time
- Supply Demand balancing deadline remains at 10:30 MST (11:30 ABT)
- NAESB deadlines will continue to be followed:
o NAESB Deadlines - Effective November 1, 2026
o NGTL Timelines - Effective November 1, 2026
Foothills
- There are no planned changes to the Foothills Tariff and therefore the gas day will continue to begin and end at 09:00 Central Clock Time
- NAESB deadlines will continue to be followed:
o Foothills Nominations Timelines - Effective November 1, 2026
Mainline
- There are no planned changes to the Mainline Tariff and therefore the gas day will continue to begin and end at 09:00 Central Clock Time
- Mainline open season deadlines remain at 09:00 Central Clock Time
- NAESB deadlines will continue to be followed:
o Mainline Nomination Timelines - Effective November 1, 2026
For questions, please contact the Pipeline at 403-920-7473 or Toll Free at 1-877-920-7473 or nominations@tcenergy.com