United Kingdom is 6 hours ahead of Chicago. When United Kingdom clocks hit noon, Chicago reads 06:00.
United Kingdom observes Europe/London and Chicago observes America/Chicago — a 6 hours gap between them.
Daily overlap window
Every working day, United Kingdom and Chicago are both in business hours for 2 hours simultaneously.
00:0006:0012:0018:0024:00
United Kingdom
Chicago
Overlap (2h)
Optimal meeting slots
United Kingdom and Chicago share 2 hours of business hours overlap daily.
15:00 London / 09:00 Chicago✓ Both working
16:00 London / 10:00 Chicago✓ Both working
Assumes a standard 9 AM–5 PM workday in each location's local timezone.
Holiday calendar for both locations
⚡ Both locations have upcoming holidays, check availability before scheduling.
United Kingdom6 holidays
Jul 13Battle of the BoyneTODAY
Aug 3Summer Bank Holiday
Aug 31Summer Bank Holiday
Nov 30Saint Andrew's Day
Dec 25Christmas Day
Chicago6 holidays
Sep 7Labour Day
Oct 12Columbus Day
Oct 12Indigenous Peoples' Day
Nov 11Veterans Day
Nov 26Thanksgiving Day
Working across United Kingdom and Chicago
Coordinating between United Kingdom (United Kingdom) and Chicago (USA) means working around a 6-hour time difference. The 2-hour overlap window gives both teams a natural slot for real-time collaboration without anyone working outside normal hours.
💡 Best practice for cross-timezone meetings
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Schedule at 15:00–16:00 (United Kingdom) for a 09:00–10:00 slot in Chicago — the sweet spot where both teams are working.
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Schedule at 16:00–17:00 (United Kingdom) for a 10:00–11:00 slot in Chicago — the sweet spot where both teams are working.
Recurring meetings are particularly vulnerable to DST shifts. The ClockinSync Chrome Extension alerts you before the offset changes.
Drag the slider at the top to convert any United Kingdom time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.
