Central Daylight Time (cdt) is used in USA. The IANA timezone identifier is America/Chicago.

Coordinated Universal Time (utc) is used in United Kingdom. The IANA timezone identifier is UTC.

CDT to UTC Time Converter

Central Daylight Time → Coordinated Universal Time

CDT = UTC-5UTC = UTC+0

ClockinSync

BASE

09:00

Work Clients Team +

00:0006:0012:0018:0024:00

UTC (London)

United Kingdom · +6h

15:00

New York

USA · +1h

10:00

Tokyo

Japan · +14h

23:00

Dubai

United Arab Emirates · +9h

18:00

Sydney

Australia · +15h

00:00+1 day

CDT (Chicago) vs UTC (London) — time difference

CDT (Chicago) is 5 hours behind UTC (London). When it's noon in CDT (Chicago), it's 17:00 in UTC (London).

CDT (Chicago) observes America/Chicago and UTC (London) observes Europe/London — a 5 hours gap between them.

Shared working hours

Both CDT (Chicago) and UTC (London) are simultaneously in business hours for 3 hours per day (assuming standard 9:00–17:00 working hours).

00:0006:0012:0018:0024:00

CDT (Chicago)

UTC (London)

Overlap (3h)

Meeting time recommendations

CDT (Chicago) and UTC (London) share 3 hours of business hours overlap daily.

09:00 Chicago / 14:00 London✓ Both working

10:00 Chicago / 15:00 London✓ Both working

11:00 Chicago / 16:00 London✓ Both working

Assumes a standard 9 AM–5 PM workday in each location's local timezone.

Public holidays this year

CDT (Chicago)7 holidays

Jul 3Independence DaySOON

Sep 7Labour Day

Oct 12Columbus Day

Oct 12Indigenous Peoples' Day

Nov 11Veterans Day

UTC (London)

No upcoming public holidays this year.

CDT (Chicago) and UTC (London) — practical scheduling

Teams in CDT (Chicago) (USA) and UTC (London) (United Kingdom) face a 5-hour time difference day to day. A 3-hour shared business hours window makes real-time meetings feasible for both sides within their normal working day.

💡 Practical scheduling guidelines

✅

Schedule at 09:00–10:00 (CDT (Chicago)) for a 14:00–15:00 slot in UTC (London) — the sweet spot where both teams are working.

✅

Schedule at 10:00–11:00 (CDT (Chicago)) for a 15:00–16:00 slot in UTC (London) — the sweet spot where both teams are working.

✅

Schedule at 11:00–12:00 (CDT (Chicago)) for a 16:00–17:00 slot in UTC (London) — 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.

Install ClockinSync Free →

Drag the slider at the top to convert any CDT (Chicago) time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.

CDT (Chicago) ↔ UTC (London)

3h of business hours overlap daily (09:00–17:00)

CDT (Chicago)

UTC (London)

00:00

05:00

01:00

06:00

02:00

07:00

03:00

08:00