Sydney to Castaic time converter

Castaic is 18 hours behind Sydney. When it is 9:00 AM in Sydney, it is 3:00 PM (Sun, Oct 18) in Castaic.

Sydney AEDT

Monday, October 19, 2026

Castaic PDT

Sunday, October 18, 2026

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

Sydney to Castaic conversion table

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

SydneyCastaic
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 Castaic).

Daylight saving time and the difference

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

  • Oct 19, 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 19, 2027: -18h

Distance

Sydney and Castaic are 12,067 km (7,498 miles) apart in a straight line.

More conversions

Castaic 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 CastaicLondon to CastaicLos Angeles to CastaicChicago to CastaicToronto to CastaicSão Paulo to CastaicParis to CastaicBerlin to CastaicMoscow to CastaicDubai to CastaicNew Delhi to CastaicBangkok to Castaic

Questions and answers

What is the time difference between Sydney and Castaic?

Castaic is 18 hours behind Sydney.

What time is it in Castaic when it is 9 AM in Sydney?

When it is 9:00 AM in Sydney, it is 3:00 PM (Sun, Oct 18) in Castaic.

When is the best time to call Castaic from Sydney?

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

Does the time difference between Sydney and Castaic change?

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