Chicago to East Boston time converter

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

Chicago CDT

Tuesday, October 20, 2026

East Boston EDT

Tuesday, October 20, 2026

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

Chicago to East Boston conversion table

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

ChicagoEast Boston
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 East Boston).

Daylight saving time and the difference

The difference changes during the year because Chicago and East Boston 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 East Boston are 1,369 km (851 miles) apart in a straight line.

More conversions

East Boston 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 East BostonLondon to East BostonLos Angeles to East BostonToronto to East BostonSão Paulo to East BostonParis to East BostonBerlin to East BostonMoscow to East BostonDubai to East BostonNew Delhi to East BostonBangkok to East BostonSingapore to East Boston

Questions and answers

What is the time difference between Chicago and East Boston?

East Boston is 1 hour ahead of Chicago.

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

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

When is the best time to call East Boston from Chicago?

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

Does the time difference between Chicago and East Boston change?

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