Seoul is usually 1 hour behind Newcastle. Newcastle observes daylight saving time and Seoul does not, so the difference shifts by an hour around the changeovers.

SeoulNewcastle

Sunrise 5:27 AMSunset 7:52 PM(local)

Sunrise 6:52 AMSunset 5:08 PM(local)

Newcastle: standard timeNow UTC+10. Next change: October 4, 2026 β€” clocks go forward 1 hour.
SeoulUTC+9
NewcastleUTC+10

πŸ‡°πŸ‡· Seoul

Dialing code+82
Population10,349,312
Coordinates37.57Β°N, 126.98Β°E
Elevation38 m

πŸ‡¦πŸ‡Ί Newcastle

Dialing code+61
Population508,437
Coordinates32.93Β°S, 151.78Β°E
Elevation48 m

Best time for a call: 09:00–17:00 in SeoulAdd to calendar

Working hours assumed 9:00–18:00.

Frequently asked questions

What is the time difference between Seoul and Newcastle?
Seoul is 1 hour behind Newcastle. Use the side-by-side clocks and the day/night strips above to convert any hour between them.
When is the best time to call between Seoul and Newcastle?
The best window to call is 09:00–17:00 Seoul time, when working hours overlap in both cities. Pick an hour on the strips to add it to your calendar.
Why does the time difference between Seoul and Newcastle change?
Because at least one of Seoul and Newcastle observes daylight saving time, the difference shifts by an hour when one city changes its clocks and the other has not yet (or does not).