Currently on CDT (UTC−5). Next clock change: Sunday 1 November 2026 at 02:00, when clocks go back to CST (UTC−6).
Time zone in Chicago
| Country | United States |
|---|---|
| IANA time zone | America/Chicago |
| Standard (winter) time | CST (UTC−6) |
| Daylight saving (summer) time | CDT (UTC−5) (southern hemisphere: roughly October to April) |
| Same clock as | Houston, Dallas |
What to know about time in Chicago
Chicago is on US Central Time: CST (UTC−6) in winter and CDT (UTC−5) in summer, one hour behind New York.
Clock changes in Chicago in 2026 and 2027
- Sunday 8 March 2026: at 02:00 clocks go forward to 03:00. CST (UTC−6) becomes CDT (UTC−5), and the hour in between is skipped.
- Sunday 1 November 2026: at 02:00 clocks go back to 01:00. CDT (UTC−5) becomes CST (UTC−6), and the hour from 01:00 happens twice.
- Sunday 14 March 2027: at 02:00 clocks go forward to 03:00. CST (UTC−6) becomes CDT (UTC−5), and the hour in between is skipped.
- Sunday 7 November 2027: at 02:00 clocks go back to 01:00. CDT (UTC−5) becomes CST (UTC−6), and the hour from 01:00 happens twice.
Times are local. Phones, laptops and other devices that set their time automatically will update themselves. Wall clocks, ovens and car clocks usually need changing by hand.
Time difference between Chicago and other cities
The table shows how far each city is ahead of or behind Chicago, and how that changes when either place changes its clocks between now and the end of 2027.
| City | Now | Through 2026 and 2027 |
|---|---|---|
| London | 6 hours ahead | 6 hours ahead until 25 Oct 2026; 5 hours ahead 25 Oct 2026 to 1 Nov 2026; 6 hours ahead 1 Nov 2026 to 14 Mar 2027; 5 hours ahead 14 Mar 2027 to 28 Mar 2027; 6 hours ahead 28 Mar 2027 to 31 Oct 2027; 5 hours ahead 31 Oct 2027 to 7 Nov 2027; 6 hours ahead from 7 Nov 2027 |
| New York | 1 hour ahead | 1 hour ahead until 1 Nov 2026; same time 1 Nov 2026 to 1 Nov 2026; 1 hour ahead 1 Nov 2026 to 14 Mar 2027; 2 hours ahead 14 Mar 2027 to 14 Mar 2027; 1 hour ahead 14 Mar 2027 to 7 Nov 2027; same time 7 Nov 2027 to 7 Nov 2027; 1 hour ahead from 7 Nov 2027 |
| Los Angeles | 2 hours behind | 2 hours behind until 1 Nov 2026; 1 hour behind 1 Nov 2026 to 1 Nov 2026; 2 hours behind 1 Nov 2026 to 14 Mar 2027; 3 hours behind 14 Mar 2027 to 14 Mar 2027; 2 hours behind 14 Mar 2027 to 7 Nov 2027; 1 hour behind 7 Nov 2027 to 7 Nov 2027; 2 hours behind from 7 Nov 2027 |
| Dubai | 9 hours ahead | 9 hours ahead until 1 Nov 2026; 10 hours ahead 1 Nov 2026 to 14 Mar 2027; 9 hours ahead 14 Mar 2027 to 7 Nov 2027; 10 hours ahead from 7 Nov 2027 |
| Mumbai | 10½ hours ahead | 10½ hours ahead until 1 Nov 2026; 11½ hours ahead 1 Nov 2026 to 14 Mar 2027; 10½ hours ahead 14 Mar 2027 to 7 Nov 2027; 11½ hours ahead from 7 Nov 2027 |
| Singapore | 13 hours ahead | 13 hours ahead until 1 Nov 2026; 14 hours ahead 1 Nov 2026 to 14 Mar 2027; 13 hours ahead 14 Mar 2027 to 7 Nov 2027; 14 hours ahead from 7 Nov 2027 |
| Tokyo | 14 hours ahead | 14 hours ahead until 1 Nov 2026; 15 hours ahead 1 Nov 2026 to 14 Mar 2027; 14 hours ahead 14 Mar 2027 to 7 Nov 2027; 15 hours ahead from 7 Nov 2027 |
| Sydney | 16 hours ahead | 16 hours ahead until 1 Nov 2026; 17 hours ahead 1 Nov 2026 to 14 Mar 2027; 16 hours ahead 14 Mar 2027 to 4 Apr 2027; 15 hours ahead 4 Apr 2027 to 3 Oct 2027; 16 hours ahead 3 Oct 2027 to 7 Nov 2027; 17 hours ahead from 7 Nov 2027 |
Working hours overlap
How much of a 09:00–17:00 working day in Chicago overlaps with the same hours elsewhere, using a mid-week day in January and July 2027:
- London: in January, 2 hours: 09:00–11:00 in Chicago is 15:00–17:00 in London; in July, 2 hours: 09:00–11:00 in Chicago is 15:00–17:00 in London.
- New York: in January, 7 hours: 09:00–16:00 in Chicago is 10:00–17:00 in New York; in July, 7 hours: 09:00–16:00 in Chicago is 10:00–17:00 in New York.
Plan around Chicago time
- Convert a time in Chicago to another city, on any date
- Find a meeting time that works for Chicago and up to four other places
- All time zones in United States