Hours of service

The GST/HST Registry service is available from Monday to Saturday during the hours shown in the table below:

Hours of service by time zone
Time zone	Monday - Friday	Saturday
British Columbia and Yukon (Pacific time)	1:30 a.m. to midnight	2:30 a.m. to 2:00 p.m.
Alberta, Northwest Territories, and Nunavut (Mountain time)	2:30 a.m. to 1:00 a.m.	Midnight to 1:00 a.m. 3:30 a.m. to 3:00 p.m.
Saskatchewan*, Manitoba, Northwest Territories, and Nunavut (Central time)	3:30 a.m. to 2:00 a.m.	Midnight to 2:00 a.m. 4:30 a.m. to 4 p.m.
Ontario, Québec, and Nunavut (Eastern time)	4:30 a.m. to 3:00 a.m.	Midnight to 3:00 a.m. 5:30 a.m. to 5 p.m.
New Brunswick, Nova Scotia, and PEI (Atlantic time)	5:30 a.m. to 4:00 a.m.	1:00 a.m. to 4:00 a.m. 6:30 a.m. to 6 p.m.
Newfoundland and Labrador (Newfoundland time)	6:00 a.m. to 4:30 a.m.	1:30 a.m. to 4:30 a.m. 7:00 a.m. to 6:30 p.m.

*During Daylight Savings Time, service hours in Saskatchewan coincide with Mountain time.

This service is not available 24 hours a day due to daily maintenance activities.

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