World Time ZonesTime in Ottawa: time zone and time difference
Last updated:
Time zone
America/TorontoCanada
UTC offsetUTC−4in effect
Difference from Japan−13 h
Local time10:10Oct 9, 2026
Daylight saving time changes (2026–2027)
- Mar 8, 2026 03:00: UTC−5 → UTC−4
- Nov 1, 2026 01:00: UTC−4 → UTC−5
- Mar 14, 2027 03:00: UTC−5 → UTC−4
- Nov 7, 2027 01:00: UTC−4 → UTC−5
Japan time → time in Ottawa
| Japan (JST) | Ottawa |
|---|---|
| 00:00 | 11:00 (-1 d) |
| 01:00 | 12:00 (-1 d) |
| 02:00 | 13:00 (-1 d) |
| 03:00 | 14:00 (-1 d) |
| 04:00 | 15:00 (-1 d) |
| 05:00 | 16:00 (-1 d) |
| 06:00 | 17:00 (-1 d) |
| 07:00 | 18:00 (-1 d) |
| 08:00 | 19:00 (-1 d) |
| 09:00 | 20:00 (-1 d) |
| 10:00 | 21:00 (-1 d) |
| 11:00 | 22:00 (-1 d) |
| 12:00 | 23:00 (-1 d) |
| 13:00 | 00:00 |
| 14:00 | 01:00 |
| 15:00 | 02:00 |
| 16:00 | 03:00 |
| 17:00 | 04:00 |
| 18:00 | 05:00 |
| 19:00 | 06:00 |
| 20:00 | 07:00 |
| 21:00 | 08:00 |
| 22:00 | 09:00 |
| 23:00 | 10:00 |
Time difference to other cities
| City | UTC offset | Δ Ottawa |
|---|---|---|
| Tokyo | UTC+9 | +13 h |
| Seoul | UTC+9 | +13 h |
| Beijing | UTC+8 | +12 h |
| Hong Kong | UTC+8 | +12 h |
| Taipei | UTC+8 | +12 h |
| Bangkok | UTC+7 | +11 h |
| Singapore | UTC+8 | +12 h |
| Jakarta | UTC+7 | +11 h |
| Manila | UTC+8 | +12 h |
| Ho Chi Minh City | UTC+7 | +11 h |
| Delhi | UTC+5:30 | +9 h 30 min |
| Dubai | UTC+4 | +8 h |
| Moscow | UTC+3 | +7 h |
| Istanbul | UTC+3 | +7 h |
| Cairo | UTC+3 | +7 h |
| London | UTC+1 | +5 h |
| Paris | UTC+2 | +6 h |
| Berlin | UTC+2 | +6 h |
| Madrid | UTC+2 | +6 h |
| Rome | UTC+2 | +6 h |
| New York City | UTC−4 | ±0 |
| Chicago | UTC−5 | −1 h |
| Los Angeles | UTC−7 | −3 h |
| São Paulo | UTC−3 | +1 h |
| Mexico City | UTC−6 | −2 h |
| Sydney | UTC+11 | +15 h |
| Honolulu | UTC−10 | −6 h |
Method
Offsets and daylight saving transitions are computed from the IANA time zone database (tzdata, public domain) bundled with Python; city coordinates and time zone assignment come from GeoNames (CC BY 4.0). Rules can change at short notice when governments change them; the page reflects the tzdata version at build time.
About this page
Ottawa uses the time zone America/Toronto, currently UTC−4. Ottawa is 13 h behind Japan.