Ottawa Time to AEST Converter
AEDT is 16 hours ahead of EST. 9:00 AM EST = 1:00 AM AEDT (next day).
AEDT is 16 hours ahead of EST at the moment. To convert Ottawa Time to AEST, add 16 hours to the Ottawa Time time: 9:00 AM EST = 1:00 AM AEDT (next day).
Ottawa Time (Ottawa time) is used in Ottawa, Canada. AEST (Australian Eastern Time) is used in New South Wales, Victoria, Tasmania, ACT; Queensland (Brisbane) all year.
Queensland stays on AEST all year. AEST (Australian Eastern Standard Time) is not in force right now: New South Wales is currently on AEDT. This page uses whichever name applies on the date you pick, so the numbers below say AEDT.
Ottawa Time to AEST time conversion table
Ottawa Time to AEST on 6 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| Ottawa Time | AEST | Day |
|---|---|---|
| 12:00 AM EST | 4:00 PM AEDT | — |
| 1:00 AM EST | 5:00 PM AEDT | — |
| 2:00 AM EST | 6:00 PM AEDT | — |
| 3:00 AM EST | 7:00 PM AEDT | — |
| 4:00 AM EST | 8:00 PM AEDT | — |
| 5:00 AM EST | 9:00 PM AEDT | — |
| 6:00 AM EST | 10:00 PM AEDT | night |
| 7:00 AM EST | 11:00 PM AEDT | night |
| 8:00 AM EST | 12:00 AM AEDT | next day |
| 9:00 AM EST | 1:00 AM AEDT | next day |
| 10:00 AM EST | 2:00 AM AEDT | next day |
| 11:00 AM EST | 3:00 AM AEDT | next day |
| 12:00 PM EST | 4:00 AM AEDT | next day |
| 1:00 PM EST | 5:00 AM AEDT | next day |
| 2:00 PM EST | 6:00 AM AEDT | next day |
| 3:00 PM EST | 7:00 AM AEDT | next day |
| 4:00 PM EST | 8:00 AM AEDT | next day |
| 5:00 PM EST | 9:00 AM AEDT | next day |
| 6:00 PM EST | 10:00 AM AEDT | next day |
| 7:00 PM EST | 11:00 AM AEDT | next day |
| 8:00 PM EST | 12:00 PM AEDT | next day |
| 9:00 PM EST | 1:00 PM AEDT | next day |
| 10:00 PM EST | 2:00 PM AEDT | next day |
| 11:00 PM EST | 3:00 PM AEDT | next day |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert Ottawa Time to AEST
Add 16 hours to the Ottawa Time time to get AEST.
Example: 9:00 AM EST = 1:00 AM AEDT (next day).
Across midnight: 10:00 PM EST = 2:00 PM AEDT (next day). The date changes, so always check the day as well as the hour.
Time difference between Ottawa Time and AEST
The time difference between Ottawa Time and AEST is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:
- 31 Dec 2025 – 7 Mar 2026: AEST is 16 hours ahead of Ottawa Time.
- 8 Mar 2026 – 3 Apr 2026: AEST is 15 hours ahead of Ottawa Time.
- 4 Apr 2026 – 2 Oct 2026: AEST is 14 hours ahead of Ottawa Time.
- 3 Oct 2026 – 31 Oct 2026: AEST is 15 hours ahead of Ottawa Time.
- 1 Nov 2026 – 30 Dec 2026: AEST is 16 hours ahead of Ottawa Time.
Ottawa Time and AEST during daylight saving time
- Ottawa Time next changes on 14 Mar 2027: clocks go forward one hour at 01:59 local time, from EST (UTC−5) to EDT (UTC−4).
- AEST next changes on 4 Apr 2027: clocks go back one hour at 02:59 local time, from AEDT (UTC+11) to AEST (UTC+10).
Best time for a meeting between Ottawa Time and AEST
Ottawa Time and AEST have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 3:00 PM EST, which is 7:00 AM AEDT.
Ottawa Time to AEST FAQ
What is the time difference between Ottawa Time and AEST?
Right now AEDT is 16 hours ahead of EST. The gap changes 5 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM Ottawa Time in AEST?
9:00 AM EST is 1:00 AM AEDT (next day).
What is 12 PM (noon) Ottawa Time in AEST?
12:00 PM EST is 4:00 AM AEDT (next day).
Is AEST ahead of or behind Ottawa Time?
AEDT is 16 hours ahead of EST, so it is later in AEST than in Ottawa Time.
Does Ottawa Time change for daylight saving time?
Yes. Ottawa Time next changes on 14 Mar 2027, when clocks go forward one hour from EST to EDT.
Does AEST change for daylight saving time?
Yes. AEST next changes on 4 Apr 2027, when clocks go back one hour from AEDT to AEST.
What is the best time for a meeting between Ottawa Time and AEST?
Ottawa Time and AEST have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 3:00 PM EST, which is 7:00 AM AEDT.
Related conversions
Convert AEST to Ottawa Time
Convert Ottawa Time to other time zones
Convert other time zones to AEST
Learn more
Updated 6 November 2026. Time zone data: IANA tz database.