Chicago to Greater Sudbury time converter

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

Chicago CDT

Tuesday, October 20, 2026

Greater Sudbury EDT

Tuesday, October 20, 2026

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

Chicago to Greater Sudbury conversion table

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

ChicagoGreater Sudbury
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 Greater Sudbury).

Daylight saving time and the difference

The difference changes during the year because Chicago and Greater Sudbury 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 Greater Sudbury are 740 km (460 miles) apart in a straight line.

More conversions

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New York to Greater SudburyLondon to Greater SudburyLos Angeles to Greater SudburyToronto to Greater SudburySão Paulo to Greater SudburyParis to Greater SudburyBerlin to Greater SudburyMoscow to Greater SudburyDubai to Greater SudburyNew Delhi to Greater SudburyBangkok to Greater SudburySingapore to Greater Sudbury

Questions and answers

What is the time difference between Chicago and Greater Sudbury?

Greater Sudbury is 1 hour ahead of Chicago.

What time is it in Greater Sudbury when it is 9 AM in Chicago?

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

When is the best time to call Greater Sudbury from Chicago?

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

Does the time difference between Chicago and Greater Sudbury change?

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