Sydney, Australia
Sun, Jul 5, 2026 00:37
- Timezone
- Australia/Sydney
- UTC offset
- UTC+10:00
- Daylight saving
- No
Compare Sydney vs Seoul time, current local times, UTC offset difference, daylight saving status, and the best time to plan meetings or travel.
Quick Answer
The live comparison below shows both local times, current UTC offsets, daylight saving status, and whether Seoul is ahead of or behind Sydney.
Current time difference
Sun, Jul 5, 2026 00:37
Sat, Jul 4, 2026 23:37
Time difference
Seoul is 1 hour behind Sydney
UTC offset difference
-01:00
Suggested call window
Sun, Jul 5, 10:00-19:00 / Sun, Jul 5, 09:00-18:00
Calculated using initiator awake hours of 08:00-23:00 and recipient office hours of 09:00-18:00.
Dynamic Time Difference
The difference changes during 2026 because Sydney changes UTC offset during the year and Seoul keeps a fixed UTC offset. Jan 1-Apr 4: Sydney is 2 hours ahead of Seoul; Apr 5-Oct 3: Sydney is 1 hour ahead of Seoul; Oct 4-Dec 31: Sydney is 2 hours ahead of Seoul.
UTC+10:00 · Seasonal clock changes; DST is inactive now
UTC+09:00 · No seasonal offset change detected
Business Call Window
Both 09:00-18:00 workdays overlap. A practical window is 10:00-18:00 in Sydney, which is 09:00-17:00 in Seoul.
Sydney: 10:00-18:00
Seoul: 09:00-17:00
24-Hour Conversion Table
The table uses today's active UTC offsets. Seasonal rows can shift when daylight saving time changes.
| Sydney | Seoul |
|---|---|
| 00:00 | 23:00 (previous day) |
| 01:00 | 00:00 |
| 02:00 | 01:00 |
| 03:00 | 02:00 |
| 04:00 | 03:00 |
| 05:00 | 04:00 |
| 06:00 | 05:00 |
| 07:00 | 06:00 |
| 08:00 | 07:00 |
| 09:00 | 08:00 |
| 10:00 | 09:00 |
| 11:00 | 10:00 |
| 12:00 | 11:00 |
| 13:00 | 12:00 |
| 14:00 | 13:00 |
| 15:00 | 14:00 |
| 16:00 | 15:00 |
| 17:00 | 16:00 |
| 18:00 | 17:00 |
| 19:00 | 18:00 |
| 20:00 | 19:00 |
| 21:00 | 20:00 |
| 22:00 | 21:00 |
| 23:00 | 22:00 |
Sydney is 1 hour ahead of Seoul. This uses the active IANA timezone offsets for today.
The difference changes during 2026 because Sydney changes UTC offset during the year and Seoul keeps a fixed UTC offset. Jan 1-Apr 4: Sydney is 2 hours ahead of Seoul; Apr 5-Oct 3: Sydney is 1 hour ahead of Seoul; Oct 4-Dec 31: Sydney is 2 hours ahead of Seoul.
Sydney is currently UTC+10:00; Seoul is currently UTC+09:00.
Travelers from Sydney to Seoul move their clock back by 1 hour.
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