Current Time in Chicago, United States
Exact time synced with atomic clocks (IANA + NTP)
Country
Dialling: +1
City Details
Chicago
Lat: 41.8781° N
Long: 87.6298° W
Population: 2,716,000
Time Zone
America/Chicago
CDT
Public Holidays in United States
Truman Day
Memorial Day
Juneteenth National Independence Day
Via Nager.Date
Time Difference from You to Chicago
Business Hours in Chicago
Sunrise & Sunset in Chicago Today
Data via sunrisesunset.io
Current Weather in Chicago, United States
Data via Open-Meteo · Updates every 30 min
Moon Phase in Chicago Tonight
Overview
Chicago is the third most populous city in the United States, with 2.72 million residents across 591 km² as of 2024, and a metro area of 9.6 million. It is the dominant commercial centre of the Midwest, home to 31 Fortune 500 headquarters, the world's busiest rail freight hub, and O'Hare International Airport — one of the world's busiest by flight operations.
Administrative Region
Midwest / Great Lakes
US-IL
Local Currency
$
Metadata
- Web Domain.us
- ISO CodeUS-IL
Culture & Daily Life
📜 History & Origins
The site of Chicago was known to indigenous peoples as a portage between the Great Lakes and the Mississippi River basin, with the name likely derived from an Algonquian word for wild onion or garlic. Fort Dearborn was established by the US Army in 1803 at the mouth of the Chicago River. Chicago was incorporated as a town in 1833 with just 350 residents, became a city in 1837, and by 1870 had grown to 300,000 people driven by the railroad era and grain trade.
🗣️ Languages
👥 Demographics
✨ Leisure Highlights
- •Millennium Park and Cloud Gate (The Bean)
- •Art Institute of Chicago
- •Chicago Architecture Center river cruise
- •Navy Pier and Museum Campus
- •Wrigley Field and historic neighbourhood ballpark culture
🎒 Visitor Tip
The L train (elevated rail) is the best way to move around and iconic in itself — the Loop line circles the downtown core. Chicago's architecture is world-class; do the Chicago Architecture Center boat tour on the river before anything else. The lakefront and Millennium Park are free. Deep-dish pizza is a tourist staple but locals eat thin-crust — both are worth trying.
Geography & Climate
Land & Terrain
Surface area and physical characteristics
Almost completely flat, shaped by glacial activity during the last Ice Age. The city sits on the southern tip of Lake Michigan at an elevation of just 176m above sea level. The Chicago Plain extends westward with minimal topographical variation. Two rivers — the Chicago and Calumet — run through the city; the Chicago River was uniquely engineered in 1900 to flow away from Lake Michigan.
Climate Stats
Humid continental (Köppen Dfa)
Avg Summer
23°C
Avg Winter
-4°C
Annual Rainfall
991 mm
Best Months (Sunshine)
Travel & Connectivity
✈️ Nearby AirportsIATA / Distance
🚄 Rail ConnectionsOperator / Distance
Nearby Cities & Excursions
Other times compared to Chicago
Frequently Asked Questions about time in Chicago
What timezone is Chicago in?↓
Chicago is in the America/Chicago time zone (America/Chicago), currently UTCCDT.
Does United States observe daylight saving time?↓
No. United States does not observe daylight saving time. Chicago stays on CST/CDT (UTCCDT) year-round, so the clocks never change.
What is CST/CDT?↓
CST/CDT stands for America/Chicago. It is UTCCDT and is the standard time used in United States.
What is the time difference between Chicago and New York?↓
Chicago is 5 hours ahead of New York (EST). When New York switches to EDT in summer, the difference decreases by 1 hour.
How accurate is the time shown for Chicago?↓
The time displayed for Chicago is synced with atomic clock sources via NTP (Network Time Protocol) and uses IANA timezone data to ensure accuracy to the second. It automatically reflects any daylight saving time changes.
What does UTCCDT mean for Chicago?↓
UTCCDT means Chicago is aligned with Coordinated Universal Time (UTC), the global standard for timekeeping.
What are the business hours in Chicago?↓
Standard business hours in Chicago are typically Monday to Friday, 9:00 AM to 6:00 PM CST/CDT (UTCCDT). Many businesses also operate Saturday mornings. Public holidays follow the United States national calendar.
Is there much time difference between Chicago and London?↓
Chicago is within a few hours of London, so scheduling calls is usually straightforward. Always confirm the current local time in both cities, especially around daylight saving time changes.