Chicago to St. Catharines time converter

St. Catharines is 1 hour ahead of Chicago. When it is 9:00 AM in Chicago, it is 10:00 AM in St. Catharines.

Chicago CDT

Sunday, October 18, 2026

St. Catharines EDT

Sunday, October 18, 2026

Chicago
Illinois, United States
Sun, Oct 18
CDTUTC-5
St. Catharines
Ontario, Canada
Sun, Oct 18
EDTUTC-4+1h
Finding your time zone…
Shared working hours (9:00–18:00)

Chicago to St. Catharines conversion table

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

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

Best time to call or meet

Both sides are at work from 9:00 AM – 5:00 PM in Chicago (10:00 AM – 6:00 PM in St. Catharines).

Daylight saving time and the difference

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

  • Oct 18, 2026 – Nov 1, 2026: +1h
  • Nov 1, 2026 – Nov 1, 2026: ±0
  • Nov 1, 2026 – Mar 14, 2027: +1h
  • Mar 14, 2027 – Mar 14, 2027: +2h
  • Mar 14, 2027 – Oct 18, 2027: +1h

Distance

Chicago and St. Catharines are 704 km (437 miles) apart in a straight line.

More conversions

St. Catharines to ChicagoChicago to New YorkChicago to LondonChicago to Los AngelesChicago to TorontoChicago to São PauloChicago to ParisChicago to BerlinChicago to MoscowChicago to DubaiChicago to New DelhiChicago to BangkokChicago to Singapore
New York to St. CatharinesLondon to St. CatharinesLos Angeles 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. CatharinesSingapore to St. Catharines

Questions and answers

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

St. Catharines is 1 hour ahead of Chicago.

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

When it is 9:00 AM in Chicago, it is 10:00 AM in St. Catharines.

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

Both sides are at work from 9:00 AM – 5:00 PM in Chicago (10:00 AM – 6:00 PM in St. Catharines).

Does the time difference between Chicago 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.