Time difference
Seoul to Sydney Time Difference
Sydney is 1 hour ahead of Seoul — when it's 12:00 PM in Seoul, it's 1:00 PM in Sydney. (Seoul (Asia/Seoul, KST); Sydney (Australia/Sydney, AEST).) Below: live local times, the best hours for a call, a full conversion table, and exact daylight-saving dates.
Sydney is 1 hour ahead of Seoul. The best window for a call is 9 AM–4 PM in Seoul, which is 10 AM–5 PM in Sydney — a 7-hour overlap inside 9 AM–5 PM on both sides. Clocks change on October 4, 2026, which briefly shifts the gap between Seoul and Sydney — the converter on this page always reflects the correct offset for the date you pick.
- When it's 9:00 AM in Seoul, it's 10:00 AM in Sydney.
- When it's 9:00 AM in Sydney, it's 8:00 AM in Seoul.
Sydney is currently 1 hour ahead of Seoul.
Interactive converter
12:00PM
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Best times to meet
The 9 AM – 5 PM business windows in Seoul and Sydney overlap for 7 hours. 9 AM–4 PM in Seoul is 10 AM–5 PM in Sydney. Aim somewhere in the middle of that window so neither side starts cold or finishes drained.
Quick conversion table
| Seoul | Sydney |
|---|---|
| 12 AM | 1:00 AM |
| 1 AM | 2:00 AM |
| 2 AM | 3:00 AM |
| 3 AM | 4:00 AM |
| 4 AM | 5:00 AM |
| 5 AM | 6:00 AM |
| 6 AM | 7:00 AM |
| 7 AM | 8:00 AM |
| 8 AM | 9:00 AM |
| 9 AM | 10:00 AM |
| 10 AM | 11:00 AM |
| 11 AM | 12:00 PM |
| 12 PM | 1:00 PM |
| 1 PM | 2:00 PM |
| 2 PM | 3:00 PM |
| 3 PM | 4:00 PM |
| 4 PM | 5:00 PM |
| 5 PM | 6:00 PM |
| 6 PM | 7:00 PM |
| 7 PM | 8:00 PM |
| 8 PM | 9:00 PM |
| 9 PM | 10:00 PM |
| 10 PM | 11:00 PM |
| 11 PM | 12:00 AM (next day) |
Daylight saving
On October 4, 2026, Sydney shifts for daylight saving. After that, Sydney will be 2 hours ahead of Seoul (currently 1 hour ahead of Seoul). The converter and the tables above always reflect the correct offset for the date you pick.
- Seoul does not observe daylight saving time.
- Sydney is not currently observing daylight saving time (standard time is in effect).
Frequently asked questions
- Is Sydney ahead of or behind Seoul?
- Sydney is 1 hour ahead of Seoul.
- How many hours ahead of Seoul is Sydney?
- Sydney is 1 hour ahead of Seoul.
- What time is 9 AM in Seoul in Sydney?
- 9:00 AM in Seoul is 10:00 AM in Sydney.
- What time is noon in Seoul in Sydney?
- 12:00 PM in Seoul is 1:00 PM in Sydney.
- What time is 5 PM in Seoul in Sydney?
- 5:00 PM in Seoul is 6:00 PM in Sydney. Useful for end-of-day handoffs between the two offices.
- What time is 3 PM in Seoul in Sydney?
- 3:00 PM in Seoul is 4:00 PM in Sydney.
- Is Seoul currently observing daylight saving time?
- Seoul does not observe daylight saving time — its UTC offset stays the same all year.
- Is Sydney currently observing daylight saving time?
- Sydney observes daylight saving time seasonally, but is not currently on DST (standard time is in effect).
- Do Seoul and Sydney observe daylight saving?
- On October 4, 2026, Sydney shifts for daylight saving. After that, Sydney will be 2 hours ahead of Seoul (currently 1 hour ahead of Seoul). The converter and the tables above always reflect the correct offset for the date you pick.
- When is the best time to call Sydney from Seoul?
- Aim for 9 AM–4 PM in Seoul, which is 10 AM–5 PM in Sydney.
- When is the best time to call Seoul from Sydney?
- Aim for 10 AM–5 PM in Sydney, which is 9 AM–4 PM in Seoul.
- Seoul (KST) to Sydney (AEST) — how do I convert quickly?
- Add 1 hour to Seoul local time to get Sydney local time. Or use the converter at the top of this page — it stays accurate through daylight-saving changes automatically.
Other conversions
- New York to Seoul
- London to Seoul
- Seoul to Tokyo
- Dubai to Seoul
- Seoul to Singapore
- Los Angeles to Seoul
- Paris to Seoul
- Mumbai to Seoul
- Hong Kong to Seoul
- San Francisco to Seoul