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Best Time to Meet Between Chicago and London

The best time to meet between Chicago and London is 9:00 AM–11:00 AM CDT (3:00 PM–5:00 PM GMT+1), when both cities are within standard working hours.

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Chicago
United States
CDT · UTC-5
London
United Kingdom
GMT+1 · UTC+1

Time difference between Chicago and London

Time difference summary for Chicago and London
DetailValue
Time difference6h (London is ahead)
Chicago 9–5 in London time3:00 PM–11:00 PM GMT+1
London 9–5 in Chicago time3:00 AM–11:00 AM CDT
Overlap window9:00 AM–11:00 AM CDT / 3:00 PM–5:00 PM GMT+1
Recommended slots9:00 AM CDT = 3:00 PM GMT+1, 10:00 AM CDT = 4:00 PM GMT+1
DST transitions (this year)Chicago: March 8 / November 1; London: March 29 / October 25
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A 6h time gap separates Chicago (UTC-5) and London (UTC+1). When you pick up your morning coffee in Chicago, your counterpart in London is already deep into their afternoon. Getting a meeting right means understanding exactly where those working days intersect.

With 2h of shared business hours, there's enough room for one focused daily meeting. The discipline is keeping it exactly that: focused. 6h gaps don't forgive meeting sprawl — a 30-minute standup that runs to 45 minutes starts eating into someone's actual work time. Book it, timebox it, end it on schedule.

For any recurring sync between Chicago and London, set the calendar invite in one canonical timezone and confirm the other side sees the correct local time. DST transitions can silently shift the effective meeting time by an hour for several weeks without either party noticing until someone is waiting alone on the call.

Add the rest of your team above and the planner scales to everyone at once. A three-city team spanning Chicago, London, and a third timezone often has less overlap than any two-city pair in isolation — surfacing that constraint early prevents scheduling that works on paper but burns people out in practice.

Daylight saving time: Chicago springs forward on March 8, London on March 29 — during this gap the time difference shifts by 1 hour; London falls back on October 25, Chicago on November 1.

Frequently asked questions

What is the time difference between Chicago and London?

Chicago is UTC-5 and London is UTC+1, a difference of 6h. This gap may shift by 1 hour during DST transitions.

What is the best time to meet between Chicago and London?

The best meeting time is during the 2h of shared business hours — typically 9:00 AM to 11:00 AM CDT.

Does daylight saving time affect the Chicago–London time difference?

Yes. Both cities observe daylight saving time, but on different schedules. Chicago springs forward on March 8 and London on March 29, so the gap between them shifts by 1 hour during the spring and fall mismatch window.

How many hours of overlap do Chicago and London share?

Chicago and London share 2h of business-hours overlap (assuming 9 AM–5 PM local time for both).

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