Time difference
Ottawa to Tokyo Time Difference
Tokyo is 13 hours ahead of Ottawa — when it's 12:00 PM in Ottawa, it's 1:00 AM the next day in Tokyo. (Ottawa (America/Toronto, EDT); Tokyo (Asia/Tokyo, JST).) Below: live local times, the best hours for a call, a full conversion table, and exact daylight-saving dates.
Tokyo is 13 hours ahead of Ottawa. Standard 9 AM–5 PM business hours in Ottawa and Tokyo do not overlap, so a live call needs one side outside normal hours. Clocks change on November 1, 2026, which briefly shifts the gap between Ottawa and Tokyo — the converter on this page always reflects the correct offset for the date you pick.
- When it's 9:00 AM in Ottawa, it's 10:00 PM in Tokyo.
- When it's 9:00 AM in Tokyo, it's 8:00 PM the previous day in Ottawa.
Tokyo is currently 13 hours ahead of Ottawa.
Interactive converter
12:00PM
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Best times to meet
Standard 9 AM – 5 PM hours in Ottawa and Tokyo do not overlap. The least-bad options are an early start in one city or a late evening call in the other — for example a 7–8 AM meeting in Ottawa, or a 6–8 PM meeting in Tokyo.
Quick conversion table
| Ottawa | Tokyo |
|---|---|
| 12 AM | 1:00 PM |
| 1 AM | 2:00 PM |
| 2 AM | 3:00 PM |
| 3 AM | 4:00 PM |
| 4 AM | 5:00 PM |
| 5 AM | 6:00 PM |
| 6 AM | 7:00 PM |
| 7 AM | 8:00 PM |
| 8 AM | 9:00 PM |
| 9 AM | 10:00 PM |
| 10 AM | 11:00 PM |
| 11 AM | 12:00 AM (next day) |
| 12 PM | 1:00 AM (next day) |
| 1 PM | 2:00 AM (next day) |
| 2 PM | 3:00 AM (next day) |
| 3 PM | 4:00 AM (next day) |
| 4 PM | 5:00 AM (next day) |
| 5 PM | 6:00 AM (next day) |
| 6 PM | 7:00 AM (next day) |
| 7 PM | 8:00 AM (next day) |
| 8 PM | 9:00 AM (next day) |
| 9 PM | 10:00 AM (next day) |
| 10 PM | 11:00 AM (next day) |
| 11 PM | 12:00 PM (next day) |
Daylight saving
On November 1, 2026, Ottawa shifts for daylight saving. After that, Tokyo will be 14 hours ahead of Ottawa (currently 13 hours ahead of Ottawa). The converter and the tables above always reflect the correct offset for the date you pick.
- Ottawa is currently observing daylight saving time.
- Tokyo does not observe daylight saving time.
Frequently asked questions
- Is Tokyo ahead of or behind Ottawa?
- Tokyo is 13 hours ahead of Ottawa.
- How many hours ahead of Ottawa is Tokyo?
- Tokyo is 13 hours ahead of Ottawa.
- What time is 9 AM in Ottawa in Tokyo?
- 9:00 AM in Ottawa is 10:00 PM in Tokyo.
- What time is noon in Ottawa in Tokyo?
- 12:00 PM in Ottawa is 1:00 AM the next day in Tokyo.
- What time is 5 PM in Ottawa in Tokyo?
- 5:00 PM in Ottawa is 6:00 AM the next day in Tokyo. Useful for end-of-day handoffs between the two offices.
- What time is 3 PM in Ottawa in Tokyo?
- 3:00 PM in Ottawa is 4:00 AM the next day in Tokyo.
- Is Ottawa currently observing daylight saving time?
- Ottawa is currently observing daylight saving time (summer time).
- Is Tokyo currently observing daylight saving time?
- Tokyo does not observe daylight saving time — its UTC offset stays the same all year.
- Do Ottawa and Tokyo observe daylight saving?
- On November 1, 2026, Ottawa shifts for daylight saving. After that, Tokyo will be 14 hours ahead of Ottawa (currently 13 hours ahead of Ottawa). The converter and the tables above always reflect the correct offset for the date you pick.
- When is the best time to call Tokyo from Ottawa?
- Ottawa and Tokyo business hours don't overlap. The closest options are early mornings in Ottawa or late evenings, when one side stretches outside 9–5.
- When is the best time to call Ottawa from Tokyo?
- Tokyo and Ottawa business hours don't overlap. The closest options are early mornings in Tokyo or late evenings, when one side stretches outside 9–5.
- Ottawa (EDT) to Tokyo (JST) — how do I convert quickly?
- Add 13 hours to Ottawa local time to get Tokyo local time. Or use the converter at the top of this page — it stays accurate through daylight-saving changes automatically.
Other conversions
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