Time in ORD (Chicago O’Hare)
The current local time and date in ORD (Chicago O’Hare), its time zone, and a converter to your own time.
Detecting your time zone to suggest the best hour to call…
ORD is Chicago O’Hare International Airport, on US Central Time (CST/CDT) like the rest of Chicago — the local time your flight lands or departs, switching between UTC-6 and UTC-5 for daylight saving.
ORD (Chicago O’Hare) uses UTC-6 in winter (standard time) and shifts to UTC-5 in summer when daylight saving time is active.
Compare to your time zone
Detecting your time zone…
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Compare ORD (Chicago O’Hare) with another city
ORD (Chicago O’Hare) & London · ORD (Chicago O’Hare) & New York · ORD (Chicago O’Hare) & Tokyo · ORD (Chicago O’Hare) & Los Angeles · ORD (Chicago O’Hare) & Dubai · All world clocks →
See also: Population of United States
Other cities in major airport hubs
Time in DXB (Dubai) · Time in ATL (Atlanta)
Popular time comparisons
London → New York · London → Tokyo · New York → Tokyo · London → Sydney
FAQ
What time is it in ORD (Chicago O’Hare) right now?
ORD (Chicago O’Hare) is on UTC-6 in winter and UTC-5 during daylight saving time in summer, which is 6 hours behind UTC. So when it is 12:00 UTC, the local time in ORD (Chicago O’Hare) is 06:00 in winter and 07:00 in summer. The live clock at the top of this page applies that offset to the current moment and refreshes every second.
What time zone is ORD (Chicago O’Hare) in?
ORD (Chicago O’Hare) uses the America/Chicago time zone, shown as CDT. ORD (Chicago O’Hare) uses UTC-6 in winter (standard time) and shifts to UTC-5 in summer when daylight saving time is active. The "compare to your time zone" section above converts any ORD (Chicago O’Hare) time into your own local time instantly.
Does ORD (Chicago O’Hare) observe daylight saving time?
Yes — ORD (Chicago O’Hare) does observe daylight saving time. Clocks move forward one hour in summer, taking ORD (Chicago O’Hare) from UTC-6 to UTC-5, and back again for winter. That means the difference between ORD (Chicago O’Hare) and any place holding a fixed offset changes by an hour for part of the year. This page reads the current offset from the America/Chicago zone data every time it loads, so the clock, the converter and the call window above are correct for today's date without you tracking the changeover.
How do I convert ORD (Chicago O’Hare) time to my time zone?
Convert ORD (Chicago O’Hare) time by taking its UTC-6 offset and applying the difference to your own: subtract ORD (Chicago O’Hare)'s offset from UTC to get the UTC time, then add your own offset. For example, 09:00 in ORD (Chicago O’Hare) is 15:00 UTC. The converter above does this automatically after detecting your device's time zone, and the World Clock meeting planner lays several cities out on one colour-coded 24-hour grid.
What is the dialing code for ORD (Chicago O’Hare)?
The dialing code for ORD (Chicago O’Hare) is +1. To call from abroad, dial +1 before the local number. The card at the top of this page shows it alongside the live local time so you can check it is a reasonable hour before you call.
What are the best hours to call ORD (Chicago O’Hare)?
Standard business hours in ORD (Chicago O’Hare) — 9:00 to 17:00 local time — correspond to 15:00 to 23:00 UTC while standard time is in effect, shifting one hour earlier in UTC terms during daylight saving. Convert that UTC window into your own zone to find the overlap. The "best time to call" line above does this for you, using waking hours of roughly 8am–9pm on both ends so neither side is called at night.
Learn how time zones work
UTC & GMT explained · Daylight saving explained · How to convert a time between two cities