Boston to Chicago time converter

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

Boston EDT

Friday, October 16, 2026

Chicago CDT

Friday, October 16, 2026

Boston
Massachusetts, United States
Fri, Oct 16
EDTUTC-4
Chicago
Illinois, United States
Fri, Oct 16
CDTUTC-5-1h
Finding your time zone…
Shared working hours (9:00–18:00)

Boston to Chicago conversion table

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

BostonChicago
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 Boston (9:00 AM – 5:00 PM in Chicago).

Daylight saving time and the difference

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

  • Oct 16, 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 16, 2027: -1h

Distance

Boston and Chicago are 1,368 km (850 miles) apart in a straight line.

More conversions

Chicago to BostonBoston to New YorkBoston to LondonBoston to Los AngelesBoston to TorontoBoston to São PauloBoston to ParisBoston to BerlinBoston to MoscowBoston to DubaiBoston to New DelhiBoston to BangkokBoston 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 Boston and Chicago?

Chicago is 1 hour behind Boston.

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

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

When is the best time to call Chicago from Boston?

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

Does the time difference between Boston 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.