Time in Illinois now
7:58AMCST
CSTUTC−6−1 h vs New York (you)America/Chicago
- Next clock change: Sunday, March 14, 2027: at 2:00 AM clocks go forward 1 hour to 3:00 AM (CDT, UTC−5)
- Next clock change: Sunday, November 7, 2027: at 2:00 AM clocks go back 1 hour to 1:00 AM (CST, UTC−6)
Time zone in Illinois
All of Illinois keeps the same time: Central Standard Time (CST, UTC−6) in winter and Central Daylight Time (CDT, UTC−5) in summer.
Chicago lies at 87.7° west, where mean solar time is UTC−5:51 (four minutes per degree of longitude). That is within 9 min of its standard time, so the sun is highest close to noon in winter, and about 1:00 PM in summer.
Daylight saving time in Illinois
Yes. Illinois moves its clocks forward one hour on the second Sunday of March at 2:00 AM and back on the first Sunday of November at 2:00 AM (local time).
These are the federal dates (15 U.S.C. §260a); the daylight saving time page has the law.
All coming change dates are on the America/Chicago page.
Clock history of Illinois
Illinois has kept the same clocks as Chicago since at least 1970: tzdata records both under America/Chicago. Clocks have moved for daylight saving time every year since 1970. Before 1970 local practice could differ from Chicago’s, and tzdata does not track it separately; the year-by-year table, which starts with Chicago’s local mean time, is on the America/Chicago page.
Convert Illinois time
Time difference between Illinois and major cities
| City | Local time now | Illinois vs city now | January | July | Office overlap Jan / Jul |
|---|---|---|---|---|---|
| New York | 8:58 AM Tue, Nov 3 | −1 h | −1 h | −1 h | 7 h / 7 h |
| Los Angeles | 5:58 AM Tue, Nov 3 | +2 h | +2 h | +2 h | 6 h / 6 h |
| London | 1:58 PM Tue, Nov 3 | −6 h | −6 h | −6 h | 2 h / 2 h |
| Berlin | 2:58 PM Tue, Nov 3 | −7 h | −7 h | −7 h | 1 h / 1 h |
| Dubai | 5:58 PM Tue, Nov 3 | −10 h | −10 h | −9 h | none / none |
| New Delhi | 7:28 PM Tue, Nov 3 | −11 h 30 min | −11 h 30 min | −10 h 30 min | none / none |
| Singapore | 9:58 PM Tue, Nov 3 | −14 h | −14 h | −13 h | none / none |
| Beijing | 9:58 PM Tue, Nov 3 | −14 h | −14 h | −13 h | none / none |
| Tokyo | 10:58 PM Tue, Nov 3 | −15 h | −15 h | −14 h | none / none |
- In 2027, Illinois is 5 h behind London from March 14 to March 27 and from October 31 to November 6, instead of 6 h behind London as during the rest of the year, because the two places change their clocks on different dates.
- In 2027, Illinois is 6 h behind Berlin from March 14 to March 27 and from October 31 to November 6, instead of 7 h behind Berlin as during the rest of the year, because the two places change their clocks on different dates.
Office hours and calls
With JavaScript on, this line shows how Illinois’s office hours overlap yours today.
Neighbouring time zones
The nearest large cities on a different clock, with the straight-line distance from Illinois and the difference now.
| City | Distance | Time now | Their clock vs here |
|---|---|---|---|
| Toronto Canada | 700 km | 8:58 AM EST | +1 h |
| Ciudad Juárez Mexico | 2,010 km | 6:58 AM MST | −1 h |
| Havana Cuba | 2,140 km | 9:58 AM CDT | +2 h |
| Monterrey Mexico | 2,140 km | 7:58 AM CST | +0 h |
| Hamilton Bermuda | 2,280 km | 9:58 AM AST | +2 h |
| Phoenix United States | 2,330 km | 6:58 AM MST | −1 h |
Same clock as Illinois
These places keep exactly the same time as Illinois all year under the current rules (zones America/Indiana/Knox, America/Indiana/Tell_City, America/Matamoros, America/Menominee, America/North_Dakota/Beulah and 5 more).
Cities in Illinois
Illinois at a glance
- CountryUnited States
- Time zone IDAmerica/Chicago
- Standard timeCST (UTC−6)
- Daylight saving timeCDT (UTC−5)
- Calling code+1