Mountain Daylight Time (mdt) is used in USA. The IANA timezone identifier is America/Denver.

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

MDT to CST Time Converter

Mountain Daylight Time → Central Standard Time

MDT = UTC-6CST = UTC-5

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

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

ClockinSync

BASE

09:00

Work Clients Team +

00:0006:0012:0018:0024:00

CST (Chicago)

USA · +1h

10:00

London

United Kingdom · +7h

16:00

New York

USA · +2h

11:00

Tokyo

Japan · +15h

00:00+1 day

Dubai

United Arab Emirates · +10h

19:00

How far apart are MDT (Denver) and CST (Chicago)?

MDT (Denver) is 1 hour behind CST (Chicago). At noon in MDT (Denver), your contact in CST (Chicago) sees 13:00.

MDT (Denver) observes America/Denver and CST (Chicago) observes America/Chicago — a 1 hour gap between them.

Daily overlap window

MDT (Denver) and CST (Chicago) share 7 hours of overlapping business hours daily — enough for real-time collaboration without anyone joining at odd hours.

00:0006:0012:0018:0024:00

MDT (Denver)

CST (Chicago)

Overlap (7h)

Meeting time recommendations

MDT (Denver) and CST (Chicago) share 7 hours of business hours overlap daily. Showing the 3 most balanced slots — see the time table below for the full window.

09:00 Denver / 10:00 Chicago✓ Both working

10:00 Denver / 11:00 Chicago✓ Both working

11:00 Denver / 12:00 Chicago✓ Both working

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

Public holidays for both locations

⚡ Holiday alerts for both locations, double-check schedules before confirming.

MDT (Denver)7 holidays

Jul 3Independence DaySOON

Sep 7Labour Day

Oct 12Columbus Day

Oct 12Indigenous Peoples' Day

Nov 11Veterans Day

CST (Chicago)7 holidays

Jul 3Independence DaySOON

Sep 7Labour Day

Oct 12Columbus Day

Oct 12Indigenous Peoples' Day

Nov 11Veterans Day

Scheduling between MDT (Denver) and CST (Chicago)

Teams in MDT (Denver) (USA) and CST (Chicago) (USA) face a 1-hour time difference day to day. A 7-hour shared business hours window makes real-time meetings feasible for both sides within their normal working day.

💡 Scheduling tips for these locations

✅

Schedule at 09:00–10:00 (MDT (Denver)) for a 10:00–11:00 slot in CST (Chicago) — the sweet spot where both teams are working.

✅

Schedule at 10:00–11:00 (MDT (Denver)) for a 11:00–12:00 slot in CST (Chicago) — the sweet spot where both teams are working.

✅

Schedule at 11:00–12:00 (MDT (Denver)) for a 12:00–13:00 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 MDT (Denver) time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.

MDT (Denver) ↔ CST (Chicago)

7h of business hours overlap daily (09:00–17:00)

MDT (Denver)

CST (Chicago)

00:00

01:00

02:00

03:00

04:00

05:00

06:00

07:00

08:00

09:00Working

10:00Working

11:00Working

12:00Working

13:00Working

14:00Working

15:00Working

16:00Working

17:00off

17:00

18:00

19:00

20:00

21:00

22:00

23:00

00:00+1d

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

Frequently Asked Questions

What is the difference between mdt and cst?

Mountain Daylight Time (mdt) is UTC-6 and Central Standard Time (cst) is UTC-5. The difference between them is 1 hours.

Where is mdt used?

Mountain Daylight Time (mdt) is used in USA and surrounding regions. The IANA timezone identifier is America/Denver.

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 mdt to cst?

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

Popular MDT conversions

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

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