Chicago to Sumter time converter

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

Chicago CDT

Saturday, October 17, 2026

Sumter EDT

Saturday, October 17, 2026

Chicago
Illinois, United States
Sat, Oct 17
CDTUTC-5
Sumter
South Carolina, United States
Sat, Oct 17
EDTUTC-4+1h
Finding your time zone…
Shared working hours (9:00–18:00)

Chicago to Sumter conversion table

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

ChicagoSumter
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 Sumter).

Daylight saving time and the difference

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

  • Oct 17, 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 17, 2027: +1h

Distance

Chicago and Sumter are 1,089 km (677 miles) apart in a straight line.

More conversions

Sumter 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 SumterLondon to SumterLos Angeles to SumterToronto to SumterSão Paulo to SumterParis to SumterBerlin to SumterMoscow to SumterDubai to SumterNew Delhi to SumterBangkok to SumterSingapore to Sumter

Questions and answers

What is the time difference between Chicago and Sumter?

Sumter is 1 hour ahead of Chicago.

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

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

When is the best time to call Sumter from Chicago?

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

Does the time difference between Chicago and Sumter change?

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