Chicago to Chatham time converter

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

Chicago CDT

Tuesday, October 20, 2026

Chatham EDT

Tuesday, October 20, 2026

Chicago
Illinois, United States
Tue, Oct 20
CDTUTC-5
Chatham
Ontario, Canada
Tue, Oct 20
EDTUTC-4+1h
Finding your time zone…
Shared working hours (9:00–18:00)

Chicago to Chatham conversion table

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

ChicagoChatham
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 Chatham).

Daylight saving time and the difference

The difference changes during the year because Chicago and Chatham switch clocks on different dates:

  • Oct 20, 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 20, 2027: +1h

Distance

Chicago and Chatham are 455 km (283 miles) apart in a straight line.

More conversions

Chatham 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 ChathamLondon to ChathamLos Angeles to ChathamToronto to ChathamSão Paulo to ChathamParis to ChathamBerlin to ChathamMoscow to ChathamDubai to ChathamNew Delhi to ChathamBangkok to ChathamSingapore to Chatham

Questions and answers

What is the time difference between Chicago and Chatham?

Chatham is 1 hour ahead of Chicago.

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

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

When is the best time to call Chatham from Chicago?

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

Does the time difference between Chicago and Chatham change?

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