Mercer Island to Sydney time converter

Sydney is 18 hours ahead of Mercer Island. When it is 9:00 AM in Mercer Island, it is 3:00 AM (Wed, Oct 21) in Sydney.

Mercer Island PDT

Tuesday, October 20, 2026

Sydney AEDT

Wednesday, October 21, 2026

Mercer Island
Washington, United States
Tue, Oct 20
PDTUTC-7
Sydney
New South Wales, Australia
Wed, Oct 21
AEDTUTC+11+18h
Finding your time zone…
Shared working hours (9:00–18:00)

Mercer Island to Sydney conversion table

Every hour of today in Mercer Island and the matching time in Sydney. Light rows are typical working hours (9:00–18:00).

Mercer IslandSydney
12:00 AM6:00 PM
1:00 AM7:00 PM
2:00 AM8:00 PM
3:00 AM9:00 PM
4:00 AM10:00 PM
5:00 AM11:00 PM
6:00 AM12:00 AM+1 day
7:00 AM1:00 AM+1 day
8:00 AM2:00 AM+1 day
9:00 AM3:00 AM+1 day
10:00 AM4:00 AM+1 day
11:00 AM5:00 AM+1 day
12:00 PM6:00 AM+1 day
1:00 PM7:00 AM+1 day
2:00 PM8:00 AM+1 day
3:00 PM9:00 AM+1 day
4:00 PM10:00 AM+1 day
5:00 PM11:00 AM+1 day
6:00 PM12:00 PM+1 day
7:00 PM1:00 PM+1 day
8:00 PM2:00 PM+1 day
9:00 PM3:00 PM+1 day
10:00 PM4:00 PM+1 day
11:00 PM5:00 PM+1 day

Best time to call or meet

Both sides are at work from 3:00 PM – 6:00 PM in Mercer Island (9:00 AM – 12:00 PM in Sydney).

Daylight saving time and the difference

The difference changes during the year because Mercer Island and Sydney switch clocks on different dates:

  • Oct 20, 2026 – Nov 1, 2026: +18h
  • Nov 1, 2026 – Mar 14, 2027: +19h
  • Mar 14, 2027 – Apr 3, 2027: +18h
  • Apr 3, 2027 – Oct 2, 2027: +17h
  • Oct 2, 2027 – Oct 20, 2027: +18h

Distance

Mercer Island and Sydney are 12,476 km (7,752 miles) apart in a straight line.

More conversions

Sydney to Mercer IslandMercer Island to New YorkMercer Island to LondonMercer Island to Los AngelesMercer Island to ChicagoMercer Island to TorontoMercer Island to São PauloMercer Island to ParisMercer Island to BerlinMercer Island to MoscowMercer Island to DubaiMercer Island to New DelhiMercer Island to Bangkok
New York to SydneyLondon to SydneyLos Angeles to SydneyChicago to SydneyToronto to SydneySão Paulo to SydneyParis to SydneyBerlin to SydneyMoscow to SydneyDubai to SydneyNew Delhi to SydneyBangkok to Sydney

Questions and answers

What is the time difference between Mercer Island and Sydney?

Sydney is 18 hours ahead of Mercer Island.

What time is it in Sydney when it is 9 AM in Mercer Island?

When it is 9:00 AM in Mercer Island, it is 3:00 AM (Wed, Oct 21) in Sydney.

When is the best time to call Sydney from Mercer Island?

Both sides are at work from 3:00 PM – 6:00 PM in Mercer Island (9:00 AM – 12:00 PM in Sydney).

Does the time difference between Mercer Island and Sydney change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.