Castries to Sydney time converter

Sydney is 15 hours ahead of Castries. When it is 9:00 AM in Castries, it is 12:00 AM (Sat, Oct 17) in Sydney.

Castries AST

Friday, October 16, 2026

Sydney AEDT

Saturday, October 17, 2026

Castries
Saint Lucia
Fri, Oct 16
ASTUTC-4
Sydney
New South Wales, Australia
Sat, Oct 17
AEDTUTC+11+15h
Finding your time zone…
Shared working hours (9:00–18:00)

Castries to Sydney conversion table

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

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

Best time to call or meet

Working hours don't overlap fully. The closest fit is 4:00 PM – 6:00 PM in Castries (7:00 AM – 9:00 AM in Sydney): working hours on one side, early or late on the other.

Daylight saving time and the difference

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

  • Oct 16, 2026 – Apr 3, 2027: +15h
  • Apr 3, 2027 – Oct 2, 2027: +14h
  • Oct 2, 2027 – Oct 16, 2027: +15h

Distance

Castries and Sydney are 16,093 km (10,000 miles) apart in a straight line.

More conversions

Sydney to CastriesCastries to New YorkCastries to LondonCastries to Los AngelesCastries to ChicagoCastries to TorontoCastries to São PauloCastries to ParisCastries to BerlinCastries to MoscowCastries to DubaiCastries to New DelhiCastries 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 Castries and Sydney?

Sydney is 15 hours ahead of Castries.

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

When it is 9:00 AM in Castries, it is 12:00 AM (Sat, Oct 17) in Sydney.

When is the best time to call Sydney from Castries?

Working hours don't overlap fully. The closest fit is 4:00 PM – 6:00 PM in Castries (7:00 AM – 9:00 AM in Sydney): working hours on one side, early or late on the other.

Does the time difference between Castries 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.