Sydney to Union City time converter

Union City is 18 hours behind Sydney. When it is 9:00 AM in Sydney, it is 3:00 PM (Tue, Oct 20) in Union City.

Sydney AEDT

Wednesday, October 21, 2026

Union City PDT

Tuesday, October 20, 2026

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

Sydney to Union City conversion table

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

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

Best time to call or meet

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

Daylight saving time and the difference

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

  • Oct 21, 2026 – Nov 1, 2026: -18h
  • Nov 1, 2026 – Mar 14, 2027: -19h
  • Mar 14, 2027 – Apr 4, 2027: -18h
  • Apr 4, 2027 – Oct 3, 2027: -17h
  • Oct 3, 2027 – Oct 21, 2027: -18h

Distance

Sydney and Union City are 11,969 km (7,437 miles) apart in a straight line.

More conversions

Union City to SydneySydney to New YorkSydney to LondonSydney to Los AngelesSydney to ChicagoSydney to TorontoSydney to São PauloSydney to ParisSydney to BerlinSydney to MoscowSydney to DubaiSydney to New DelhiSydney to Bangkok
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 Sydney and Union City?

Union City is 18 hours behind Sydney.

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

When it is 9:00 AM in Sydney, it is 3:00 PM (Tue, Oct 20) in Union City.

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

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

Does the time difference between Sydney 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.