Canada spans six time zones; California is entirely in the Pacific Time Zone (PT: UTC−8/UTC−7 DST). The difference varies by Canadian region:
| Canadian Region / Zone | Major Cities | Standard Time (Nov–Mar) | Daylight Time (Mar–Nov) |
|---|---|---|---|
| Pacific (PT) | Vancouver, Victoria, Whitehorse | 0 hours (same) | 0 hours (same) |
| Mountain (MT) | Edmonton, Calgary, Yellowknife | +1 hour | +1 hour |
| Central (CT) | Winnipeg, Regina | +2 hours | +2 hours (SK no DST) |
| Eastern (ET) | Toronto, Ottawa, Montreal, Quebec City | +3 hours | +3 hours |
| Atlantic (AT) | Halifax, Fredericton, Charlottetown | +4 hours | +4 hours |
| Newfoundland (NT) | St. John's | +4.5 hours | +4.5 hours |