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

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

UTC to CST Time Converter

Coordinated Universal Time → Central Standard Time

UTC = UTC+0CST = UTC-5

⚠️ CST is ambiguous — on this page it means Central Standard Time. It also refers to:

UTC → China Standard Time (Beijing) ↗UTC → Cuba Standard Time (Havana) ↗

ClockinSync

BASE

09:00

Work Clients Team +

00:0006:0012:0018:0024:00

CST (Chicago)

USA · -6h🔔 Public Holiday in 7d — Juneteenth National Independence Day

03:00

New York

USA · -5h

04:00

Tokyo

Japan · +8h

17:00

Dubai

United Arab Emirates · +3h

12:00

Sydney

Australia · +9h

18:00

UTC (London) ↔ CST (Chicago) — time offset

UTC (London) is 5 hours ahead of CST (Chicago). When UTC (London) clocks hit noon, CST (Chicago) reads 07:00.

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

Mutual working hours

Every working day, UTC (London) and CST (Chicago) are both in business hours for 3 hours simultaneously.

00:0006:0012:0018:0024:00

UTC (London)

CST (Chicago)

Overlap (3h)

Optimal meeting slots

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

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

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

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

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

Holiday calendar for both locations

UTC (London)

No upcoming public holidays this year.

CST (Chicago)8 holidays

Jun 19Juneteenth National Independence DaySOON

Jul 3Independence Day

Sep 7Labour Day

Oct 12Columbus Day

Oct 12Indigenous Peoples' Day

Working across UTC (London) and CST (Chicago)

Coordinating between UTC (London) (United Kingdom) and CST (Chicago) (USA) means working around a 5-hour time difference. The 3-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

✅

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

✅

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

✅

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

Install ClockinSync Free →

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

UTC (London) ↔ CST (Chicago)

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

UTC (London)

CST (Chicago)

00:00

19:00-1d

01:00

20:00-1d

02:00

21:00-1d

03:00

22:00-1d

04:00

23:00-1d

05:00

00:00

06:00

01:00

07:00

02:00

08:00

03:00

09:00Working

04:00off

10:00Working

05:00off

11:00Working

06:00off

12:00Working

07:00off

13:00Working

08:00off

14:00Working

09:00Working

15:00Working

10:00Working

16:00Working

11:00Working

17:00

12:00Working

18:00

13:00Working

19:00

14:00Working

20:00

15:00Working

21:00

16:00Working

22:00

17:00

23:00

18:00

Working hours: 09:00–17:00 local. Green = both working. Purple = one side only.

Frequently Asked Questions

What is the difference between utc and cst?

Coordinated Universal Time (utc) is UTC+0 and Central Standard Time (cst) is UTC-5. The difference between them is 5 hours.

Where is utc used?

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

Where is cst used?

Central Standard Time (cst) is used in USA and surrounding regions. The IANA timezone identifier is America/Chicago. Note: cst is ambiguous and may refer to other timezones.

How do I convert utc to cst?

Use the interactive converter above. Drag the time slider to any utc time and the cst equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.

Popular UTC conversions

UTC → New York UTC → Tokyo UTC → Dubai UTC → Sydney UTC → Paris UTC → Berlin UTC → Singapore UTC → Los Angeles UTC → Toronto UTC → Mumbai

Popular CST conversions

London → CST New York → CST Tokyo → CST Dubai → CST Sydney → CST Paris → CST Berlin → CST Singapore → CST Los Angeles → CST Toronto → CST