St. Catharines to Sydney time converter

Sydney is 15 hours ahead of St. Catharines. When it is 9:00 AM in St. Catharines, it is 12:00 AM (Tue, Oct 20) in Sydney.

St. Catharines EDT

Monday, October 19, 2026

Sydney AEDT

Monday, October 19, 2026

St. Catharines
Ontario, Canada
Mon, Oct 19
EDTUTC-4
Sydney
New South Wales, Australia
Mon, Oct 19
AEDTUTC+11+15h
Finding your time zone…
Shared working hours (9:00–18:00)

St. Catharines to Sydney conversion table

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

St. CatharinesSydney
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 St. Catharines (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 St. Catharines and Sydney switch clocks on different dates:

  • Oct 19, 2026 – Nov 1, 2026: +15h
  • Nov 1, 2026 – Mar 14, 2027: +16h
  • Mar 14, 2027 – Apr 3, 2027: +15h
  • Apr 3, 2027 – Oct 2, 2027: +14h
  • Oct 2, 2027 – Oct 19, 2027: +15h

Distance

St. Catharines and Sydney are 15,576 km (9,678 miles) apart in a straight line.

More conversions

Sydney to St. CatharinesSt. Catharines to New YorkSt. Catharines to LondonSt. Catharines to Los AngelesSt. Catharines to ChicagoSt. Catharines to TorontoSt. Catharines to São PauloSt. Catharines to ParisSt. Catharines to BerlinSt. Catharines to MoscowSt. Catharines to DubaiSt. Catharines to New DelhiSt. Catharines 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 St. Catharines and Sydney?

Sydney is 15 hours ahead of St. Catharines.

What time is it in Sydney when it is 9 AM in St. Catharines?

When it is 9:00 AM in St. Catharines, it is 12:00 AM (Tue, Oct 20) in Sydney.

When is the best time to call Sydney from St. Catharines?

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

Does the time difference between St. Catharines 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.