Chicago time zone
The current UTC offset for Chicago, its daylight saving behaviour, and how its working day lines up with the world's major business hubs.
Zone America/Chicago, currently reporting as CDT. Currently on summer time.
Daylight saving in Chicago
Chicago observes daylight saving. It is currently on summer time at UTC−5, moving between UTC−6 in standard time and UTC−5 in summer time. On 1 November 2026 the clocks move back to UTC−6. On 14 March 2027 the clocks move forward to UTC−5.
About Chicago
Chicago anchors US Central Time, an hour behind the East Coast and the zone covering most of the American interior. For international scheduling it behaves like a slightly softer version of New York — an hour further from Europe, an hour closer to Asia. It observes the standard US daylight saving dates.
Overlap with major hubs
| City | Offset from Chicago | Overlap quality |
|---|---|---|
| New York | +1 | 8h shared working hours |
| London | +6 | 3h shared working hours |
| Dubai | +9 | Awake, outside core hours |
| Singapore | +13 | Awake, outside core hours |
| Sydney | +15 | Awake, outside core hours |
Overlap quality compares core working hours (09:00–17:59 local) in both cities. Follow any row for the full hour-by-hour breakdown.
The Chicago working day in UTC
| UTC | Chicago | Status |
|---|---|---|
| 00:00 | 19:00 prev day | Evening |
| 01:00 | 20:00 prev day | Evening |
| 02:00 | 21:00 prev day | Late night |
| 03:00 | 22:00 prev day | Late night |
| 04:00 | 23:00 prev day | Late night |
| 05:00 | 00:00 | Asleep |
| 06:00 | 01:00 | Asleep |
| 07:00 | 02:00 | Asleep |
| 08:00 | 03:00 | Asleep |
| 09:00 | 04:00 | Asleep |
| 10:00 | 05:00 | Asleep |
| 11:00 | 06:00 | Early morning |
| 12:00 | 07:00 | Early morning |
| 13:00 | 08:00 | Early morning |
| 14:00 | 09:00 | Working hours |
| 15:00 | 10:00 | Working hours |
| 16:00 | 11:00 | Working hours |
| 17:00 | 12:00 | Working hours |
| 18:00 | 13:00 | Working hours |
| 19:00 | 14:00 | Working hours |
| 20:00 | 15:00 | Working hours |
| 21:00 | 16:00 | Working hours |
| 22:00 | 17:00 | Working hours |
| 23:00 | 18:00 | Evening |
Shown for 27 August 2026.
Compare with your own cities
Open the interactive grid to place Chicago alongside up to ten other cities and see where everyone's working hours overlap.
Intl API and were last generated on 27 August 2026. See how we calculate these figures.