Portsmouth to Chicago time converter

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

Portsmouth EDT

Wednesday, October 21, 2026

Chicago CDT

Wednesday, October 21, 2026

Portsmouth
New Hampshire, United States
Wed, Oct 21
EDTUTC-4
Chicago
Illinois, United States
Wed, Oct 21
CDTUTC-5-1h
Finding your time zone…
Shared working hours (9:00–18:00)

Portsmouth to Chicago conversion table

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

PortsmouthChicago
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 Portsmouth (9:00 AM – 5:00 PM in Chicago).

Daylight saving time and the difference

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

  • Oct 21, 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 21, 2027: -1h

Distance

Portsmouth and Chicago are 1,390 km (864 miles) apart in a straight line.

More conversions

Chicago to PortsmouthPortsmouth to New YorkPortsmouth to LondonPortsmouth to Los AngelesPortsmouth to TorontoPortsmouth to São PauloPortsmouth to ParisPortsmouth to BerlinPortsmouth to MoscowPortsmouth to DubaiPortsmouth to New DelhiPortsmouth to BangkokPortsmouth 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 Portsmouth and Chicago?

Chicago is 1 hour behind Portsmouth.

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

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

When is the best time to call Chicago from Portsmouth?

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

Does the time difference between Portsmouth 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.