Hours of service
Returns can be filed only during the following hours, every day of the week
| Time Zone | Hours of service |
|---|---|
| British Columbia and Yukon (Pacific Time) |
3 a.m. to 12 a.m. |
| Alberta, Saskatchewan, Northwest Territories, and Nunavut (Mountain Time) |
4 a.m. to 1 a.m. |
| Manitoba, Northwest Territories, and Nunavut (Central Time) |
5 a.m. to 2 a.m. |
| Ontario, Quebec, and Nunavut (Eastern Time) | 6 a.m. to 3 a.m. |
| New Brunswick, Nova Scotia, and PEI (Atlantic Time) | 7 a.m. to 4 a.m. |
| Newfoundland and Labrador (Newfoundland Time) |
7:30 a.m. to 4:30 a.m. |
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