Hours of service

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

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

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

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