Seoul to Sydney Time Converter

Seoul is 1 hour behind Sydney · Seoul UTC+9 · Sydney UTC+10

🇰🇷 Seoul

🇦🇺 Sydney

Best time to connect

Working hours overlap: 9am–5pm Seoul time. That's the window when both cities are in a typical 9-to-5 workday — ideal for calls and meetings.

Seoul ↔ Sydney time difference explained

Seoul is 1 hour behind Sydney. Seoul, South Korea runs on Asia/Seoul (UTC+9) while Sydney, Australia uses Australia/Sydney (UTC+10). The converter above stays accurate through daylight saving changes because it reads live UTC offsets rather than fixed values. Whether you're coordinating remote work, booking a call, or planning travel between Seoul and Sydney, the working-hours overlap panel shows exactly when both cities are awake and at their desks.

Need more than the time? See the full Seoul and Sydney remote-work guides — cost of living, internet speed and visa options.

More Seoul conversions

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Hour-by-hour: Seoul to Sydney

When it's this time in Seoul, here's the time in Sydney — all 24 hours, in both 24-hour and 12-hour (am/pm) format.

00:00 · 12am01:00 · 1am

01:00 · 1am02:00 · 2am

02:00 · 2am03:00 · 3am

03:00 · 3am04:00 · 4am

04:00 · 4am05:00 · 5am

05:00 · 5am06:00 · 6am

06:00 · 6am07:00 · 7am

07:00 · 7am08:00 · 8am

08:00 · 8am09:00 · 9am

09:00 · 9am10:00 · 10am

10:00 · 10am11:00 · 11am

11:00 · 11am12:00 · 12pm

12:00 · 12pm13:00 · 1pm

13:00 · 1pm14:00 · 2pm

14:00 · 2pm15:00 · 3pm

15:00 · 3pm16:00 · 4pm

16:00 · 4pm17:00 · 5pm

17:00 · 5pm18:00 · 6pm

18:00 · 6pm19:00 · 7pm

19:00 · 7pm20:00 · 8pm

20:00 · 8pm21:00 · 9pm

21:00 · 9pm22:00 · 10pm

22:00 · 10pm23:00 · 11pm

23:00 · 11pm00:00 · 12am (+1d)

Seoul keeps Korea Standard Time (KST, UTC+9) all year. Sydney keeps Australian Eastern Standard Time (AEST, UTC+10) from 5 April to 4 October 2026, and Australian Eastern Daylight Time (AEDT, UTC+11) for the rest of the year. On those offsets the time in Australia is 1 hour ahead of the time in South Korea: 9am in Seoul is 10am, 12pm in Seoul is 1pm, 2pm in Seoul is 3pm, and 8pm in Seoul is 9pm in Sydney.

Frequently asked questions

What is the time difference between Seoul and Sydney?

Seoul is 1 hour behind Sydney. Seoul is UTC+9 and Sydney is UTC+10. The live converter above updates every second and accounts for daylight saving time automatically.

When it's 9am in Seoul, what time is it in Sydney?

When it's 9am in Seoul, it's 10:00 in Sydney (seoul is 1 hour behind sydney).

What's the best time to schedule a call between Seoul and Sydney?

The "best time to connect" panel above shows the live working-hours overlap — the window when both Seoul and Sydney are within a typical 9-to-5 workday, ideal for meetings and calls.

Do Seoul and Sydney observe daylight saving time?

Both cities' current UTC offsets are shown live above and adjust automatically when either region enters or leaves daylight saving time, so the converter is always accurate.