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AET to ET time converter
US Eastern is 14 hours behind Sydney for 182 days of 2026, and 16 hours behind for the other 127 days, because daylight saving changes the gap.
AET to ET conversion table
Local time in Sydney and the matching time in US Eastern on two reference dates, one in winter and one in summer for the northern hemisphere.
| Sydney (AET) | US Eastern on 15 January | US Eastern on 15 July |
|---|---|---|
| 08:00 | 16:00 (-1 day) | 18:00 (-1 day) |
| 09:00 | 17:00 (-1 day) | 19:00 (-1 day) |
| 10:00 | 18:00 (-1 day) | 20:00 (-1 day) |
| 12:00 | 20:00 (-1 day) | 22:00 (-1 day) |
| 15:00 | 23:00 (-1 day) | 01:00 |
| 17:00 | 01:00 | 03:00 |
| 18:00 | 02:00 | 04:00 |
| 21:00 | 05:00 | 07:00 |
Best meeting times between Sydney and US Eastern
- January: No overlap inside both working days. The closest flexible hours (07:00-21:00): 07:00-13:00 AET = 15:00-21:00 ET (-1 day).
- July: No overlap inside both working days. The closest flexible hours (07:00-21:00): 07:00-11:00 AET = 17:00-21:00 ET (-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 AET and ET
- Sydney moves its clocks back on 5 April and forward on 4 October in 2026.
- US Eastern moves its clocks forward on 8 March and back on 1 November in 2026.
- The gap is 14 hours for 182 days and 16 hours for 127 days of 2026.
About the two zones
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.
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.
Frequently asked questions
What time is 9 AM AET in ET?
On 15 January, 09:00 in Sydney is 17:00 (-1 day) in US Eastern. On 15 July it is 19:00 (-1 day).
What is the time difference between Sydney and US Eastern?
US Eastern is 14 hours behind Sydney for 182 days of 2026, and 16 hours behind for the other 127 days, because daylight saving changes the gap.
Does the time difference between AET and ET 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 Sydney and US Eastern?
No overlap inside both working days. The closest flexible hours (07:00-21:00): 07:00-13:00 AET = 15:00-21:00 ET (-1 day). In July: No overlap inside both working days. The closest flexible hours (07:00-21:00): 07:00-11:00 AET = 17:00-21:00 ET (-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.