Foster City to Sydney time converter

Sydney is 18 hours ahead of Foster City. When it is 9:00 AM in Foster City, it is 3:00 AM (Mon, Oct 19) in Sydney.

Foster City PDT

Sunday, October 18, 2026

Sydney AEDT

Monday, October 19, 2026

Foster City
California, United States
Sun, Oct 18
PDTUTC-7
Sydney
New South Wales, Australia
Mon, Oct 19
AEDTUTC+11+18h
Finding your time zone…
Shared working hours (9:00–18:00)

Foster City to Sydney conversion table

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

Foster CitySydney
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 Foster City (9:00 AM – 12:00 PM in Sydney).

Daylight saving time and the difference

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

  • Oct 18, 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 18, 2027: +18h

Distance

Foster City and Sydney are 11,947 km (7,424 miles) apart in a straight line.

More conversions

Sydney to Foster CityFoster City to New YorkFoster City to LondonFoster City to Los AngelesFoster City to ChicagoFoster City to TorontoFoster City to São PauloFoster City to ParisFoster City to BerlinFoster City to MoscowFoster City to DubaiFoster City to New DelhiFoster City 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 Foster City and Sydney?

Sydney is 18 hours ahead of Foster City.

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

When it is 9:00 AM in Foster City, it is 3:00 AM (Mon, Oct 19) in Sydney.

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

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

Does the time difference between Foster City 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.