Cook County in numbers
- Coordinates
- 41.8954, -87.6462
- Region
- Illinois
- Country
- United States, North America
- Capital
- Washington, D.C. — 958 km away
- Same name
- 2 more places in the world share this name
What time is it in Cook County, Illinois, United States
This page shows the time as it is now in Cook County, Illinois, United States, in the America/Chicago time zone (−5).
Cook County, United States
Saturday, 24 October 2026
UTC−5 · America/Chicago
Local time in Cook County
UTC−5 · daylight saving time is active
Local time in Cook County, Illinois.
The sun today
Sunrise 7:14 AM Solar noon 12:36 PM Sunset 5:57 PM Daylight 10 h 43 min Night 13 h 17 min Civil twilight 6:46 AM – 6:26 PM
Weather in Cook County right now
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Weather data by Open-Meteo, updated every 30 minutes.
Cook County and its neighbours
Postal codes
- 60642 Chicago — 0.8 km away
- 60654 Chicago — 0.8 km away
- 60606 Chicago — 1.1 km away
- 60610 Chicago — 1.4 km away
- 60661 Chicago — 1.6 km away
- 60695 Chicago — 1.8 km away
- 60602 Chicago — 1.8 km away
- 60611 Chicago — 2.0 km away
- 60604 Chicago — 2.2 km away
- 60686 Chicago — 2.3 km away
- 60603 Chicago — 2.3 km away
- 60689 Chicago — 2.5 km away
Postal codes come from the free GeoNames dataset. Where a code is listed with a distance, it belongs to a nearby settlement — GeoNames spells that name differently from ours.
Largest cities in Illinois
Other places named Cook County
- Cook County Georgia, United States
- Cook County Minnesota, United States
Same time zone — America/Chicago
- Chicago United States
- Houston United States
- San Antonio United States
- Dallas United States
- Fort Worth United States
- Austin United States
Nearby places
- Chicago — 5.1 km
- Prairie Shores — 6.5 km
- Grant Village — 9.2 km
- Cragin — 9.5 km
- Austin — 9.9 km
- Cicero — 10.5 km
Local time details for Cook County
Neighbouring places Chicago and Prairie Shores run on Cook County time.
Cook County is mapped by 12 postal codes.
The local zone in Cook County is America/Chicago, standing at UTC−5. Whether daylight saving applies: Yes.
Today the sun comes up at 7:14 AM in Cook County and goes down at 5:57 PM. Daylight measures 10 h 43 min.
Questions and answers
- Could you specify the time zone used in Cook County?
- The time zone used in Cook County is America/Chicago, with an offset of −5.
- Does daylight saving time have any effect on the clock in Cook County?
- Daylight saving in Cook County: Yes.
- Sunset in Cook County is at what time?
- At 5:57 PM.