Time zone
CST / CDT — the standard and daylight abbreviations for Chicago.
Check the current time in Chicago, United States. Chicago follows Central Time, UTC-6 in winter and UTC-5 during daylight saving from March to November.
The key facts for Chicago, United States, and how its clock relates to UTC.
Today’s sun times for Chicago, the next clock change, and the current gap to other major cities.
Choose a date to see where a 09:00 start lands around the world.
Chicago is the largest city in the Central Time Zone, sitting at UTC-6 in winter and shifting to UTC-5 for Central Daylight Time in the warmer half of the year. It runs one hour behind New York and two hours ahead of Los Angeles, making it a natural midpoint for coordinating calls across the country. The city's CME Group and Chicago Board of Trade keep commodity and futures markets humming on Central hours. For much of the Midwest, Chicago's clock is the reference everyone sets their day by.
Chicago changes its clocks for daylight saving time, so its exact UTC offset depends on the season (UTC-6 (UTC-5 in summer)). The live clock above reads Chicago's local time directly from the IANA time zone database in your browser, using the rules installed on your device. Keep your browser updated when regional rules change. To plan a call or convert a specific moment, use the timezone converter or meeting planner linked below.
Chicago sits at about 41.9°N, 87.6°W. The longest day of 2026 is June 19, with 15h 14m between sunrise and sunset. The shortest is December 17, with 9h 08m, a difference of 6 h 6 min. At this mid-latitude, winter evenings are dark early and summer evenings stay light well after a normal working day.
The earliest sunrise of the year comes around June 12 (05:14) and the latest sunset around June 21 (20:29). These are not exactly on the solstice because the sun’s position runs slightly ahead of or behind clock time during the year.
Solar noon, when the sun is highest, falls at about 12:57 local time in late March, 12:52 in late June and 11:48 in late December. In standard time the sun is highest at about 11:51 on average, close to 12:00, so the clock and the sun are well aligned in Chicago. During daylight saving time everything moves an hour later on the clock.
| Date (2026) | Sunrise | Sunset | Day length |
|---|---|---|---|
| Jan 21 | 07:12 | 16:51 | 9h 39m |
| Feb 21 | 06:38 | 17:30 | 10h 53m |
| Mar 21 | 06:52 | 19:03 | 12h 11m |
| Apr 21 | 06:00 | 19:37 | 13h 36m |
| May 21 | 05:25 | 20:09 | 14h 44m |
| Jun 21 | 05:15 | 20:29 | 15h 14m |
| Jul 21 | 05:33 | 20:19 | 14h 46m |
| Aug 21 | 06:04 | 19:42 | 13h 38m |
| Sep 21 | 06:36 | 18:50 | 12h 14m |
| Oct 21 | 07:09 | 18:00 | 10h 51m |
| Nov 21 | 06:47 | 16:25 | 9h 38m |
| Dec 21 | 07:14 | 16:22 | 9h 08m |
Chicago changes its clocks twice in 2026. On a change night, the local time skips or repeats a block of time, and the gap to other cities shifts unless they change on the same date.
Recurring meetings set in Chicago time stay at the same local hour; participants elsewhere see the meeting move by an hour for the weeks when only one side has changed.
Yes. Chicago switches to Central Daylight Time (UTC-5) on the second Sunday in March and back to Central Standard Time (UTC-6) on the first Sunday in November.
Chicago is one hour behind New York. When it is noon in Chicago, it is 1:00 p.m. in New York throughout the year.
Chicago is in the Central Time Zone, using CST (UTC-6) in winter and CDT (UTC-5) in summer, under the IANA zone America/Chicago.
Compare Chicago with other major world clocks.
Background guides that explain how Chicago's clock relates to the rest of the world.