Chicago to Thornhill time converter

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

Chicago CDT

Sunday, October 18, 2026

Thornhill EDT

Sunday, October 18, 2026

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

Chicago to Thornhill conversion table

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

ChicagoThornhill
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 Thornhill).

Daylight saving time and the difference

The difference changes during the year because Chicago and Thornhill 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 Thornhill are 705 km (438 miles) apart in a straight line.

More conversions

Thornhill 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 ThornhillLondon to ThornhillLos Angeles to ThornhillToronto to ThornhillSão Paulo to ThornhillParis to ThornhillBerlin to ThornhillMoscow to ThornhillDubai to ThornhillNew Delhi to ThornhillBangkok to ThornhillSingapore to Thornhill

Questions and answers

What is the time difference between Chicago and Thornhill?

Thornhill is 1 hour ahead of Chicago.

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

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

When is the best time to call Thornhill from Chicago?

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

Does the time difference between Chicago and Thornhill change?

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