Sarnia to Chicago time converter

Chicago is 1 hour behind Sarnia. When it is 9:00 AM in Sarnia, it is 8:00 AM in Chicago.

Sarnia EDT

Sunday, October 18, 2026

Chicago CDT

Sunday, October 18, 2026

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

Sarnia to Chicago conversion table

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

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

Best time to call or meet

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

Daylight saving time and the difference

The difference changes during the year because Sarnia and Chicago 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

Sarnia and Chicago are 448 km (278 miles) apart in a straight line.

More conversions

Chicago to SarniaSarnia to New YorkSarnia to LondonSarnia to Los AngelesSarnia to TorontoSarnia to São PauloSarnia to ParisSarnia to BerlinSarnia to MoscowSarnia to DubaiSarnia to New DelhiSarnia to BangkokSarnia to Singapore
New York to ChicagoLondon to ChicagoLos Angeles to ChicagoToronto to ChicagoSão Paulo to ChicagoParis to ChicagoBerlin to ChicagoMoscow to ChicagoDubai to ChicagoNew Delhi to ChicagoBangkok to ChicagoSingapore to Chicago

Questions and answers

What is the time difference between Sarnia and Chicago?

Chicago is 1 hour behind Sarnia.

What time is it in Chicago when it is 9 AM in Sarnia?

When it is 9:00 AM in Sarnia, it is 8:00 AM in Chicago.

When is the best time to call Chicago from Sarnia?

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

Does the time difference between Sarnia and Chicago change?

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