Sydney to St. Catharines time converter

St. Catharines is 15 hours behind Sydney. When it is 9:00 AM in Sydney, it is 6:00 PM (Sun, Oct 18) in St. Catharines.

Sydney AEDT

Monday, October 19, 2026

St. Catharines EDT

Monday, October 19, 2026

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

Sydney to St. Catharines conversion table

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

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

Best time to call or meet

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

Daylight saving time and the difference

The difference changes during the year because Sydney and St. Catharines switch clocks on different dates:

  • Oct 19, 2026 – Nov 1, 2026: -15h
  • Nov 1, 2026 – Mar 14, 2027: -16h
  • Mar 14, 2027 – Apr 4, 2027: -15h
  • Apr 4, 2027 – Oct 3, 2027: -14h
  • Oct 3, 2027 – Oct 19, 2027: -15h

Distance

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

More conversions

St. Catharines 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 St. CatharinesLondon to St. CatharinesLos Angeles to St. CatharinesChicago to St. CatharinesToronto to St. CatharinesSão Paulo to St. CatharinesParis to St. CatharinesBerlin to St. CatharinesMoscow to St. CatharinesDubai to St. CatharinesNew Delhi to St. CatharinesBangkok to St. Catharines

Questions and answers

What is the time difference between Sydney and St. Catharines?

St. Catharines is 15 hours behind Sydney.

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

When it is 9:00 AM in Sydney, it is 6:00 PM (Sun, Oct 18) in St. Catharines.

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

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

Does the time difference between Sydney and St. Catharines change?

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