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

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

UTC to MDT Time Converter

Coordinated Universal Time → Mountain Daylight Time

UTC = UTC+0MDT = UTC-6

ClockinSync

BASE

09:00

Work Clients Team +

00:0006:0012:0018:0024:00

MDT (Denver)

USA · -7h🔔 Public Holiday in 2d — Juneteenth National Independence Day

02:00

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) ↔ MDT (Denver) — time offset

UTC (London) is 6 hours ahead of MDT (Denver). At noon in UTC (London), your contact in MDT (Denver) sees 06:00.

UTC (London) is in the Europe/London timezone. MDT (Denver) is in America/Denver. The difference is 6 hours.

Mutual working hours

UTC (London) and MDT (Denver) share 2 hours of overlapping business hours daily — enough for real-time collaboration without anyone joining at odd hours.

00:0006:0012:0018:0024:00

UTC (London)

MDT (Denver)

Overlap (2h)

Recommended meeting windows

Both UTC (London) and MDT (Denver) are in standard hours simultaneously for 2h per day.

15:00 London / 09:00 Denver✓ Both working

16:00 London / 10:00 Denver✓ Both working

Based on standard 09:00–17:00 working hours in each location's local time.

Public holidays for both locations

UTC (London)

No upcoming public holidays this year.

MDT (Denver)8 holidays

Jun 19Juneteenth National Independence DaySOON

Jul 3Independence Day

Sep 7Labour Day

Oct 12Columbus Day

Oct 12Indigenous Peoples' Day

Scheduling between UTC (London) and MDT (Denver)

UTC (London) (United Kingdom) leads MDT (Denver) (USA) by 6 hours. Despite the gap, a 2-hour window of shared business hours each day keeps real-time collaboration practical for both sides.

💡 Scheduling tips for these locations

✅

15:00–16:00 in UTC (London) = 09:00–10:00 in MDT (Denver). Both sides are in standard business hours during this window.

✅

16:00–17:00 in UTC (London) = 10:00–11:00 in MDT (Denver). Both sides are in standard business hours during this window.

DST transitions can silently shift your meeting times by an hour. The ClockinSync Chrome Extension tracks these changes automatically so you never get caught off guard.

Get the Extension — Free →

Use the time slider above to find the exact equivalent time for any moment in UTC (London). The input bar accepts natural language like "3pm", "15:30", or "9am Rome" for instant conversions.

UTC (London) ↔ MDT (Denver)

2h of business hours overlap daily (09:00–17:00)

UTC (London)

MDT (Denver)

00:00

18:00-1d

01:00

19:00-1d

02:00

20:00-1d

03:00

21:00-1d

04:00

22:00-1d

05:00

23:00-1d

06:00

00:00

07:00

01:00

08:00

02:00

09:00Working

03:00off

10:00Working

04:00off

11:00Working

05:00off

12:00Working

06:00off

13:00Working

07:00off

14:00Working

08:00off

15:00Working

09:00Working

16:00Working

10:00Working

17:00

11:00Working

18:00

12:00Working

19:00

13:00Working

20:00

14:00Working

21:00

15:00Working

22:00

16:00Working

23:00

17:00

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

Frequently Asked Questions

What is the difference between utc and mdt?

Coordinated Universal Time (utc) is UTC+0 and Mountain Daylight Time (mdt) is UTC-6. The difference between them is 6 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 mdt used?

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

How do I convert utc to mdt?

Use the interactive converter above. Drag the time slider to any utc time and the mdt 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 MDT conversions

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