Does Seattle observe daylight saving time?

Yes. Seattle is on PDT (UTC-7) now, and its clocks go back 1 hour on Sun, Nov 1, to PST (UTC-8).

Does Sydney observe daylight saving time?

Yes. Sydney is on AEDT (UTC+11) now, and its clocks go back 1 hour on Sun, Apr 4, 2027, to AEST (UTC+10).

What time is it in Sydney when it's 9 AM in Seattle?

3:00 AM in Sydney, the next day (Sun, Oct 18, when it's Sat, Oct 17 in Seattle).

Seattle to Sydney Meeting Planner

Sydney is 18 hours ahead of Seattle right now. Their working days overlap for 2 hours today.

Seattle · United States

1:20 PM

Sat, Oct 17 · PDT · summer time

Sydney · Australia

7:20 AM

Sun, Oct 18 · AEDT · summer time

Best Meeting Times Between Seattle and Sydney

3:00 PM to 5:00 PM in Seattle (9:00 AM to 11:00 AM in Sydney). That's when both cities are inside working hours, 9 AM to 5 PM, giving 2 hours of overlap today.

Who's meeting

2 of 4 places

SeattleOrganizerUnited States ·· summer time1:20PMnow
SydneyAustralia ·· summer time7:20AMTomorrow · now

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Add up to 4 places by city, country, time zone or abbreviation, like Tokyo, India or JST. Press "/" to jump here.

Date in Seattle

Working hours, everywhere

Best times to meet

Saturday, October 17, 2026, in Seattle time.

3:00PMBest · OptimalWorking hours in Seattle (15:00) and Sydney (09:00, next day).
4:00PMOption 2 · OptimalWorking hours in Seattle (16:00) and Sydney (10:00, next day).
1:00PMOption 3 · GoodWorking hours in Seattle (13:00); just outside working hours in Sydney (07:00, next day).

The whole day

Pick any slot in the Fit row, or use the arrow keys there, to make it the meeting time.

Each column is a one-hour slot of the first place's day. The Fit row grades how well the slot suits everyone; each row shows the local time and whether it's working hours there.
Fit
SeattlePDT
SydneyAEDT
UTC	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06

Working hours (09–17)Just outside (07–09, 17–20)Late evening (20–23)NightFit: optimal, good, possible, poor

Your meeting

Seattle3:00 PM PDTSat, Oct 17
Sydney9:00 AM AEDTSun, Oct 18
UTC2026-10-17 22:00 UTC

What will it cost? Try the meeting cost calculator.

Time difference between Seattle and Sydney

Sydney is 18 hours ahead of Seattle right now: Sydney is on AEDT (UTC+11) and Seattle on PDT (UTC-7). That changes on Sun, Nov 1, when clocks go back in Seattle: then Sydney is 19 hours ahead of Seattle.

Time difference between Seattle and Sydney over the next 12 months
From	Difference	Why
Now	Sydney 18 hours ahead	—
Sun, Nov 1	Sydney 19 hours ahead	Clocks go back in Seattle
Sun, Mar 14, 2027	Sydney 18 hours ahead	Clocks go forward in Seattle
Sun, Apr 4, 2027	Sydney 17 hours ahead	Clocks go back in Sydney
Sun, Oct 3, 2027	Sydney 18 hours ahead	Clocks go forward in Sydney

Seattle is on Pacific Standard Time. Sydney is on Australian Eastern Standard Time.

Frequently Asked Questions: Seattle & Sydney Scheduling

What is the time difference between Seattle and Sydney?: Sydney is 18 hours ahead of Seattle right now: Sydney is on AEDT (UTC+11) and Seattle on PDT (UTC-7). That changes on Sun, Nov 1, when clocks go back in Seattle: then Sydney is 19 hours ahead of Seattle.
What is the best time to schedule a meeting between Seattle and Sydney?: 3:00 PM to 5:00 PM in Seattle (9:00 AM to 11:00 AM in Sydney). That's when both cities are inside working hours, 9 AM to 5 PM, giving 2 hours of overlap today.
Does Seattle observe daylight saving time?: Yes. Seattle is on PDT (UTC-7) now, and its clocks go back 1 hour on Sun, Nov 1, to PST (UTC-8).
Does Sydney observe daylight saving time?: Yes. Sydney is on AEDT (UTC+11) now, and its clocks go back 1 hour on Sun, Apr 4, 2027, to AEST (UTC+10).
What time is it in Sydney when it's 9 AM in Seattle?: 3:00 AM in Sydney, the next day (Sun, Oct 18, when it's Sat, Oct 17 in Seattle).

Or see every city pair, or plan with more places in the meeting planner.