Tokyo to Mercer Island time converter

Mercer Island is 16 hours behind Tokyo. When it is 9:00 AM in Tokyo, it is 5:00 PM (Tue, Oct 20) in Mercer Island.

Tokyo JST

Wednesday, October 21, 2026

Mercer Island PDT

Wednesday, October 21, 2026

Tokyo
Japan
Wed, Oct 21
JSTUTC+9
Mercer Island
Washington, United States
Wed, Oct 21
PDTUTC-7-16h
Finding your time zone…
Shared working hours (9:00–18:00)

Tokyo to Mercer Island conversion table

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

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

Best time to call or meet

Both sides are at work from 9:00 AM – 10:00 AM in Tokyo (5:00 PM – 6:00 PM in Mercer Island).

Daylight saving time and the difference

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

  • Oct 21, 2026 – Nov 1, 2026: -16h
  • Nov 1, 2026 – Mar 14, 2027: -17h
  • Mar 14, 2027 – Oct 21, 2027: -16h

Distance

Tokyo and Mercer Island are 7,705 km (4,788 miles) apart in a straight line.

More conversions

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Questions and answers

What is the time difference between Tokyo and Mercer Island?

Mercer Island is 16 hours behind Tokyo.

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

When it is 9:00 AM in Tokyo, it is 5:00 PM (Tue, Oct 20) in Mercer Island.

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

Both sides are at work from 9:00 AM – 10:00 AM in Tokyo (5:00 PM – 6:00 PM in Mercer Island).

Does the time difference between Tokyo and Mercer Island change?

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