Thunder Bay is on the same time as Kenora in winter and 1 hour ahead in summer. Updated for the 2026 time zone changes and current daylight saving rules.
| Starting | Thunder Bay is | Kenora / Thunder Bay |
|---|---|---|
| Nov 1, 2026 | same time | UTC−5 / UTC−5 |
| Mar 14, 2027 Thunder Bay springs forward | 1 hour ahead | UTC−5 / UTC−4 |
| Nov 7, 2027 Thunder Bay falls back | same time | UTC−5 / UTC−5 |
Manitoba time. UTC−5 all year. Manitoba stopped changing its clocks on Nov 1, 2026.
Eastern Time. UTC−5 in winter and UTC−4 from the second Sunday in March to the first Sunday in November.
Winter: A 9-to-5 workday overlaps for the full 8 hours: 9:00 AM to 5:00 PM in Kenora, which is 9:00 AM to 5:00 PM in Thunder Bay.
Summer: A 9-to-5 workday overlaps for 7 hours: 9:00 AM to 4:00 PM in Kenora, which is 10:00 AM to 5:00 PM in Thunder Bay.
Kenora is in Ontario but uses Manitoba's time, like most of northwestern Ontario west of 90°W. Manitoba stopped changing its clocks on Nov 1, 2026, so Kenora matches Toronto in winter and is an hour behind it in summer.
Thunder Bay is on the same time as Kenora in winter and 1 hour ahead in summer.
Kenora uses Manitoba time: UTC−5 all year. Manitoba stopped changing its clocks on Nov 1, 2026. Thunder Bay uses Eastern Time: UTC−5 in winter and UTC−4 from the second Sunday in March to the first Sunday in November.
In winter: A 9-to-5 workday overlaps for the full 8 hours: 9:00 AM to 5:00 PM in Kenora, which is 9:00 AM to 5:00 PM in Thunder Bay. In summer: A 9-to-5 workday overlaps for 7 hours: 9:00 AM to 4:00 PM in Kenora, which is 10:00 AM to 5:00 PM in Thunder Bay.
Kenora is in Ontario but uses Manitoba's time, like most of northwestern Ontario west of 90°W. Manitoba stopped changing its clocks on Nov 1, 2026, so Kenora matches Toronto in winter and is an hour behind it in summer.