Chicago to Potomac time converter

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

Chicago CDT

Saturday, October 17, 2026

Potomac EDT

Saturday, October 17, 2026

Chicago
Illinois, United States
Sat, Oct 17
CDTUTC-5
Potomac
Maryland, United States
Sat, Oct 17
EDTUTC-4+1h
Finding your time zone…
Shared working hours (9:00–18:00)

Chicago to Potomac conversion table

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

ChicagoPotomac
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 Potomac).

Daylight saving time and the difference

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

  • Oct 17, 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 17, 2027: +1h

Distance

Chicago and Potomac are 937 km (582 miles) apart in a straight line.

More conversions

Potomac 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 PotomacLondon to PotomacLos Angeles to PotomacToronto to PotomacSão Paulo to PotomacParis to PotomacBerlin to PotomacMoscow to PotomacDubai to PotomacNew Delhi to PotomacBangkok to PotomacSingapore to Potomac

Questions and answers

What is the time difference between Chicago and Potomac?

Potomac is 1 hour ahead of Chicago.

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

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

When is the best time to call Potomac from Chicago?

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

Does the time difference between Chicago and Potomac change?

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