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Chicago — America/Chicago

The current local time in the America/Chicago IANA time zone is shown below. It is the tz database identifier used in United States. The zone is currently at UTC -05:00 · CDT and observes daylight saving time.

America/Chicago

11:57:14

Sunday, 11 October 2026 CDT

Zone information

IANA designation

America/Chicago

Region: America

Reference pages: CST , CDT

Offset & DST

Current UTC offset: -05:00

Daylight saving: Observed

January offset -06:00 · July offset -05:00

Countries using America/Chicago

Chicago vs. major cities

How far Chicago is from the world's main business centres right now, what time it is there when the working day starts in Chicago, and which hours of a 09:00–17:00 day the two places share. Daylight saving changes are applied automatically.

City Difference At 09:00 in Chicago Shared office hours
New York · United States +1 h 10:00 09:00–16:00
Los Angeles · United States −2 h 07:00 11:00–17:00
São Paulo · Brazil +2 h 11:00 09:00–15:00
London · United Kingdom +6 h 15:00 09:00–11:00
Paris · France +7 h 16:00 09:00–10:00
Johannesburg · South Africa +7 h 16:00 09:00–10:00
Dubai · United Arab Emirates +9 h 18:00 None
Delhi · India +10:30 h 19:30 None
Singapore · Singapore +13 h 22:00 None
Beijing · China +13 h 22:00 None

Shared office hours are shown in Chicago time. Compare any set of cities hour by hour in the time zone converter, or pick a slot that suits everyone with the event planner.

Clock changes in Chicago

Chicago has alternated between UTC -06:00 in standard time and UTC -05:00 in daylight saving time since at least 1970. Clocks currently go forward on the second Sunday in March and back on the first Sunday in November, a rule in place since 2007.

DateChangeLocal clockNew offset
Sunday, 8 March 2026 Forward 1 hour 02:00 → 03:00 UTC -05:00
Sunday, 1 November 2026 Back 1 hour 02:00 → 01:00 UTC -06:00
Sunday, 14 March 2027 Forward 1 hour 02:00 → 03:00 UTC -05:00
Sunday, 7 November 2027 Back 1 hour 02:00 → 01:00 UTC -06:00

When clocks go forward, sunrise and sunset both happen an hour later by the clock — darker mornings, lighter evenings — and the night of the change is an hour shorter. When they go back, the reverse applies.

Source: IANA tz database, as shipped with the Unicode ICU library.

Cities in this zone

Zones on the same clock as Chicago

All IANA zones →

These zones show the same time as America/Chicago on every day of 2026, changing their clocks at the same moments. Their histories may differ.

More references for America/Chicago

Compare America/Chicago against other zones with the converter, map, and world clock, or browse the full directory.