Chicago to Massachusetts time converter

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

Chicago CDT

Sunday, October 18, 2026

Massachusetts EDT

Sunday, October 18, 2026

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

Chicago to Massachusetts conversion table

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

ChicagoMassachusetts
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 Massachusetts).

Daylight saving time and the difference

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

  • Oct 18, 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 18, 2027: +1h

More conversions

Massachusetts 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 MassachusettsLondon to MassachusettsLos Angeles to MassachusettsToronto to MassachusettsSão Paulo to MassachusettsParis to MassachusettsBerlin to MassachusettsMoscow to MassachusettsDubai to MassachusettsNew Delhi to MassachusettsBangkok to MassachusettsSingapore to Massachusetts

Questions and answers

What is the time difference between Chicago and Massachusetts?

Massachusetts is 1 hour ahead of Chicago.

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

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

When is the best time to call Massachusetts from Chicago?

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

Does the time difference between Chicago and Massachusetts change?

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