Time difference
Ottawa to Sydney Time Difference
Sydney is 15 hours ahead of Ottawa — when it's 12:00 PM in Ottawa, it's 3:00 AM the next day in Sydney. (Ottawa (America/Toronto, EDT); Sydney (Australia/Sydney, AEDT).) Below: live local times, the best hours for a call, a full conversion table, and exact daylight-saving dates.
Sydney is 15 hours ahead of Ottawa. Standard 9 AM–5 PM business hours in Ottawa and Sydney 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 Sydney — 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 12:00 AM the next day in Sydney.
- When it's 9:00 AM in Sydney, it's 6:00 PM the previous day in Ottawa.
Sydney is currently 15 hours ahead of Ottawa.
Interactive converter
12:00PM
Select both cities to see the converted time.
Best times to meet
Standard 9 AM – 5 PM hours in Ottawa and Sydney 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 Sydney.
Quick conversion table
| Ottawa | Sydney |
|---|---|
| 12 AM | 3:00 PM |
| 1 AM | 4:00 PM |
| 2 AM | 5:00 PM |
| 3 AM | 6:00 PM |
| 4 AM | 7:00 PM |
| 5 AM | 8:00 PM |
| 6 AM | 9:00 PM |
| 7 AM | 10:00 PM |
| 8 AM | 11:00 PM |
| 9 AM | 12:00 AM (next day) |
| 10 AM | 1:00 AM (next day) |
| 11 AM | 2:00 AM (next day) |
| 12 PM | 3:00 AM (next day) |
| 1 PM | 4:00 AM (next day) |
| 2 PM | 5:00 AM (next day) |
| 3 PM | 6:00 AM (next day) |
| 4 PM | 7:00 AM (next day) |
| 5 PM | 8:00 AM (next day) |
| 6 PM | 9:00 AM (next day) |
| 7 PM | 10:00 AM (next day) |
| 8 PM | 11:00 AM (next day) |
| 9 PM | 12:00 PM (next day) |
| 10 PM | 1:00 PM (next day) |
| 11 PM | 2:00 PM (next day) |
Daylight saving
On November 1, 2026, Ottawa shifts for daylight saving. After that, Sydney will be 16 hours ahead of Ottawa (currently 15 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.
- Sydney is currently observing daylight saving time.
Frequently asked questions
- Is Sydney ahead of or behind Ottawa?
- Sydney is 15 hours ahead of Ottawa.
- How many hours ahead of Ottawa is Sydney?
- Sydney is 15 hours ahead of Ottawa.
- What time is 9 AM in Ottawa in Sydney?
- 9:00 AM in Ottawa is 12:00 AM the next day in Sydney.
- What time is noon in Ottawa in Sydney?
- 12:00 PM in Ottawa is 3:00 AM the next day in Sydney.
- What time is 5 PM in Ottawa in Sydney?
- 5:00 PM in Ottawa is 8:00 AM the next day in Sydney. Useful for end-of-day handoffs between the two offices.
- What time is 3 PM in Ottawa in Sydney?
- 3:00 PM in Ottawa is 6:00 AM the next day in Sydney.
- Is Ottawa currently observing daylight saving time?
- Ottawa is currently observing daylight saving time (summer time).
- Is Sydney currently observing daylight saving time?
- Sydney is currently observing daylight saving time (summer time).
- Do Ottawa and Sydney observe daylight saving?
- On November 1, 2026, Ottawa shifts for daylight saving. After that, Sydney will be 16 hours ahead of Ottawa (currently 15 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 Sydney from Ottawa?
- Ottawa and Sydney 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 Sydney?
- Sydney and Ottawa business hours don't overlap. The closest options are early mornings in Sydney or late evenings, when one side stretches outside 9–5.
- Ottawa (EDT) to Sydney (AEDT) — how do I convert quickly?
- Add 15 hours to Ottawa local time to get Sydney local time. Or use the converter at the top of this page — it stays accurate through daylight-saving changes automatically.
Other conversions
- New York to Ottawa
- London to Ottawa
- Ottawa to Tokyo
- Dubai to Ottawa
- Ottawa to Singapore
- Los Angeles to Ottawa
- Ottawa to Paris
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