Chicago to London Meeting Planner
London is 6 hours ahead of Chicago for most of the year, which leaves just 9:00–11:00 a.m. in Chicago (3:00–5:00 p.m. in London) inside both workdays.
Shared working hours, month by month
Calculated from the official time-zone database for 9:00 a.m.–5:00 p.m. working days in both cities.
| Dates | London vs Chicago | Best shared window | Overlap |
|---|---|---|---|
| 11 Nov 2026 – 13 Mar 2027 | +6 h | 9–11 a.m. Chicago · 3–5 p.m. London | 2 h |
| 14 Mar – 27 Mar 2027 | +5 h | 9 a.m.–12 p.m. Chicago · 2–5 p.m. London | 3 h |
| 28 Mar – 30 Oct 2027 | +6 h | 9–11 a.m. Chicago · 3–5 p.m. London | 2 h |
| 31 Oct – 6 Nov 2027 | +5 h | 9 a.m.–12 p.m. Chicago · 2–5 p.m. London | 3 h |
Clock changes in the next 12 months
| Place | Clocks go back | Clocks go forward |
|---|---|---|
| United States & Canada (most areas) | Sun 7 Nov 2027 | Sun 14 Mar 2027 |
| United Kingdom | Sun 31 Oct 2027 | Sun 28 Mar 2027 |
| Sydney (NSW) | Sun 4 Apr 2027 | Sun 3 Oct 2027 |
Making it work for both sides.
A few habits make cross-time-zone meetings easier.
Best slot: 9:00 or 9:30 a.m. Chicago / 3:00–3:30 p.m. London. Starting 30 minutes earlier in Chicago (8:30 a.m.) gives London colleagues more room before the end of their day.
The same times apply to Dallas, Houston and the rest of US Central Time.
What time is it in London when it is 9 a.m. in Chicago?+
3:00 p.m. for most of the year, and 2:00 p.m. during the short gaps in March and late October/early November.
How many work hours do Chicago and London share?+
Two hours on a standard 9-to-5 day, rising to three for about two weeks after each US clock change.
Does the planner handle the clock changes?+
Yes. Pick any date and the planner uses the correct offset for that day.