Tokyo to Union City time converter

Union City is 16 hours behind Tokyo. When it is 9:00 AM in Tokyo, it is 5:00 PM (Mon, Oct 19) in Union City.

Tokyo JST

Tuesday, October 20, 2026

Union City PDT

Monday, October 19, 2026

Tokyo
Japan
Tue, Oct 20
JSTUTC+9
Union City
California, United States
Mon, Oct 19
PDTUTC-7-16h
Finding your time zone…
Shared working hours (9:00–18:00)

Tokyo to Union City conversion table

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

TokyoUnion City
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 Union City).

Daylight saving time and the difference

The difference changes during the year because Tokyo and Union City switch clocks on different dates:

  • Oct 20, 2026 – Nov 1, 2026: -16h
  • Nov 1, 2026 – Mar 14, 2027: -17h
  • Mar 14, 2027 – Oct 20, 2027: -16h

Distance

Tokyo and Union City are 8,311 km (5,164 miles) apart in a straight line.

More conversions

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New York to Union CityLondon to Union CityLos Angeles to Union CityChicago to Union CityToronto to Union CitySão Paulo to Union CityParis to Union CityBerlin to Union CityMoscow to Union CityDubai to Union CityNew Delhi to Union CityBangkok to Union City

Questions and answers

What is the time difference between Tokyo and Union City?

Union City is 16 hours behind Tokyo.

What time is it in Union City when it is 9 AM in Tokyo?

When it is 9:00 AM in Tokyo, it is 5:00 PM (Mon, Oct 19) in Union City.

When is the best time to call Union City from Tokyo?

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

Does the time difference between Tokyo and Union City change?

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