Chicago to Dorchester time converter

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

Chicago CDT

Monday, October 19, 2026

Dorchester EDT

Monday, October 19, 2026

Chicago
Illinois, United States
Mon, Oct 19
CDTUTC-5
Dorchester
Massachusetts, United States
Mon, Oct 19
EDTUTC-4+1h
Finding your time zone…
Shared working hours (9:00–18:00)

Chicago to Dorchester conversion table

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

ChicagoDorchester
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 Dorchester).

Daylight saving time and the difference

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

  • Oct 19, 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 19, 2027: +1h

Distance

Chicago and Dorchester are 1,367 km (849 miles) apart in a straight line.

More conversions

Dorchester 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 DorchesterLondon to DorchesterLos Angeles to DorchesterToronto to DorchesterSão Paulo to DorchesterParis to DorchesterBerlin to DorchesterMoscow to DorchesterDubai to DorchesterNew Delhi to DorchesterBangkok to DorchesterSingapore to Dorchester

Questions and answers

What is the time difference between Chicago and Dorchester?

Dorchester is 1 hour ahead of Chicago.

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

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

When is the best time to call Dorchester from Chicago?

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

Does the time difference between Chicago and Dorchester change?

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