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ET to AET time converter
Sydney is 14 hours ahead of US Eastern for 182 days of 2026, and 16 hours ahead of for the other 127 days, because daylight saving changes the gap.
ET to AET conversion table
Local time in US Eastern and the matching time in Sydney on two reference dates, one in winter and one in summer for the northern hemisphere.
| US Eastern (ET) | Sydney on 15 January | Sydney on 15 July |
|---|---|---|
| 08:00 | 00:00 (+1 day) | 22:00 |
| 09:00 | 01:00 (+1 day) | 23:00 |
| 10:00 | 02:00 (+1 day) | 00:00 (+1 day) |
| 12:00 | 04:00 (+1 day) | 02:00 (+1 day) |
| 15:00 | 07:00 (+1 day) | 05:00 (+1 day) |
| 17:00 | 09:00 (+1 day) | 07:00 (+1 day) |
| 18:00 | 10:00 (+1 day) | 08:00 (+1 day) |
| 21:00 | 13:00 (+1 day) | 11:00 (+1 day) |
Best meeting times between US Eastern and Sydney
- January: No overlap inside both working days. The closest flexible hours (07:00-21:00): 15:00-21:00 ET = 07:00-13:00 AET (+1 day).
- July: No overlap inside both working days. The closest flexible hours (07:00-21:00): 17:00-21:00 ET = 07:00-11:00 AET (+1 day).
Want to add more people? The meeting planner starts with these two zones and lets you add up to four more.
Daylight saving between ET and AET
- US Eastern moves its clocks forward on 8 March and back on 1 November in 2026.
- Sydney moves its clocks back on 5 April and forward on 4 October in 2026.
- The gap is 14 hours for 182 days and 16 hours for 127 days of 2026.
About the two zones
US Eastern. US Eastern Time is UTC-5 in winter (EST) and UTC-4 in summer (EDT), and is the default business time for much of the US East Coast.
Sydney. Sydney is on AEST (UTC+10) in winter and AEDT (UTC+11) in summer. Because it is in the southern hemisphere, its summer time runs from October to April, the opposite of Europe and North America.
Frequently asked questions
What time is 9 AM ET in AET?
On 15 January, 09:00 in US Eastern is 01:00 (+1 day) in Sydney. On 15 July it is 23:00.
What is the time difference between US Eastern and Sydney?
Sydney is 14 hours ahead of US Eastern for 182 days of 2026, and 16 hours ahead of for the other 127 days, because daylight saving changes the gap.
Does the time difference between ET and AET change during the year?
Yes. Both zones change their clocks, on different dates, so the gap moves between 14 and 16 hours. Always convert with the actual date.
When is the best time for a meeting between US Eastern and Sydney?
No overlap inside both working days. The closest flexible hours (07:00-21:00): 15:00-21:00 ET = 07:00-13:00 AET (+1 day). In July: No overlap inside both working days. The closest flexible hours (07:00-21:00): 17:00-21:00 ET = 07:00-11:00 AET (+1 day).
More conversions
Need the time in a scheduler? Convert a local-time cron schedule to UTC, or see which jobs a clock change affects with the DST collision simulator.