πŸ‡¦πŸ‡Ί Newcastle ↔ πŸ‡ΊπŸ‡Έ Seattle

Newcastle is usually 17 hours ahead of Seattle. Both observe daylight saving time, so the difference shifts by an hour for a few weeks around the spring and autumn changeovers.

Sunrise 6:57 AMSunset 4:57 PM(local)

Sunrise 5:16 AMSunset 9:12 PM(local)

Newcastle: standard timeNow UTC+10. Next change: October 4, 2026 β€” clocks go forward 1 hour.
Seattle: daylight saving timeNow UTC-7 PDT. Next change: November 1, 2026 β€” clocks go back 1 hour.
NewcastleUTC+10
SeattleUTC-7PDT

πŸ‡¦πŸ‡Ί Newcastle

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

πŸ‡ΊπŸ‡Έ Seattle

Dialing code+1
Population780,995
Coordinates47.61Β°N, 122.33Β°W
Elevation56 m

Best time for a call: 10:00–11:00 in NewcastleAdd to calendar

3 October 2026 β€” 1 November 2026: the gap is 18h instead of the usual 17h β€” Newcastle and Seattle change clocks on different days.

Working hours assumed 9:00–18:00.

Frequently asked questions

What is the time difference between Newcastle and Seattle?
Newcastle is 17 hours ahead of Seattle. 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 Newcastle and Seattle?
The best window to call is 10:00–11:00 Newcastle 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 Newcastle and Seattle change?
Because Newcastle and Seattle switch to or from daylight saving time on different dates, the gap between them is temporarily larger or smaller for a few weeks around those changes.