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UTC to AET time converter
Sydney is 11 hours ahead of UTC for 183 days of 2026, and 10 hours ahead of for the other 182 days, because daylight saving changes the gap.
UTC to AET conversion table
Local time in UTC and the matching time in Sydney on two reference dates, one in winter and one in summer for the northern hemisphere.
| UTC (UTC) | Sydney on 15 January | Sydney on 15 July |
|---|---|---|
| 08:00 | 19:00 | 18:00 |
| 09:00 | 20:00 | 19:00 |
| 10:00 | 21:00 | 20:00 |
| 12:00 | 23:00 | 22:00 |
| 15:00 | 02:00 (+1 day) | 01:00 (+1 day) |
| 17:00 | 04:00 (+1 day) | 03:00 (+1 day) |
| 18:00 | 05:00 (+1 day) | 04:00 (+1 day) |
| 21:00 | 08:00 (+1 day) | 07:00 (+1 day) |
Best meeting times between UTC and Sydney
- January: No overlap inside both working days. The closest flexible hours (07:00-21:00): 07:00-10:00 UTC = 18:00-21:00 AET; 20:00-21:00 UTC = 07:00-08:00 AET (+1 day).
- July: No overlap inside both working days. The closest flexible hours (07:00-21:00): 07:00-11:00 UTC = 17:00-21:00 AET.
Want to add more people? The meeting planner starts with these two zones and lets you add up to four more.
Daylight saving between UTC and AET
- UTC does not change its clocks in 2026.
- Sydney moves its clocks back on 5 April and forward on 4 October in 2026.
- The gap is 11 hours for 183 days and 10 hours for 182 days of 2026.
About the two zones
UTC. UTC is the reference all other zones are measured from. It never changes for daylight saving, which is why servers, logs and schedules are best kept in UTC.
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 UTC in AET?
On 15 January, 09:00 in UTC is 20:00 in Sydney. On 15 July it is 19:00.
What is the time difference between UTC and Sydney?
Sydney is 11 hours ahead of UTC for 183 days of 2026, and 10 hours ahead of for the other 182 days, because daylight saving changes the gap.
Does the time difference between UTC and AET change during the year?
Yes. Sydney changes its clocks and UTC does not, so the gap moves between 11 and 10 hours. Always convert with the actual date.
When is the best time for a meeting between UTC and Sydney?
No overlap inside both working days. The closest flexible hours (07:00-21:00): 07:00-10:00 UTC = 18:00-21:00 AET; 20:00-21:00 UTC = 07:00-08:00 AET (+1 day). In July: No overlap inside both working days. The closest flexible hours (07:00-21:00): 07:00-11:00 UTC = 17:00-21:00 AET.
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.