MST → GMT Converter
Mountain West to London — energy sector, and tech companies with UK operations.
MST → GMT
12:40 PM
Mountain Daylight Time (MDT)
Thursday, June 11, 2026
UTC-6 (DST active)
7:40 PM
British Summer Time (GMT+1)
Thursday, June 11, 2026
UTC+1 (DST active)
Time Zone Converter
MST·Denver
12:40 PM
Thursday, June 11, 2026
GMT·London
7:40 PM
Thursday, June 11, 2026
Compare Times
| MST | GMT |
|---|
Morning
| MST | GMT |
|---|---|
| 12:00 AM MST | 7:00 AM GMT |
| 1:00 AM MST | 8:00 AM GMT |
| 2:00 AM MST | 9:00 AM GMT |
| 3:00 AM MST | 10:00 AM GMT |
| 4:00 AM MST | 11:00 AM GMT |
| 5:00 AM MST | 12:00 PM GMT |
| 6:00 AM MST | 1:00 PM GMT |
| 7:00 AM MST | 2:00 PM GMT |
| 8:00 AM MST | 3:00 PM GMT |
| 9:00 AM MST | 4:00 PM GMT |
| 10:00 AM MST | 5:00 PM GMT |
| 11:00 AM MST | 6:00 PM GMT |
Afternoon
| MST | GMT |
|---|---|
| 12:00 PM MST | 7:00 PM GMT |
| 1:00 PM MST | 8:00 PM GMT |
| 2:00 PM MST | 9:00 PM GMT |
| 3:00 PM MST | 10:00 PM GMT |
| 4:00 PM MST | 11:00 PM GMT |
Evening
| MST | GMT |
|---|---|
| 5:00 PM MST | 12:00 AM GMT |
| 6:00 PM MST | 1:00 AM GMT |
| 7:00 PM MST | 2:00 AM GMT |
| 8:00 PM MST | 3:00 AM GMT |
| 9:00 PM MST | 4:00 AM GMT |
| 10:00 PM MST | 5:00 AM GMT |
| 11:00 PM MST | 6:00 AM GMT |
Frequently Asked Questions: MST to GMT
What is the time difference between Mountain Time and UK Time?
GMT is 7 hours ahead of MST (standard time).
What time is midnight in MST in GMT?
Midnight (12:00 AM) in Mountain Time translates to 7:00 AM GMT in UK Time.
When do business hours overlap between MST and GMT?
The business hours overlap window is 09:00–10:00 MST (16:00–17:00 GMT). The shared window is limited; aim for the earlier part of this range when possible.
Common Time Conversions
EST · New York →
CST · Chicago →
MST · Denver →
PST · Los Angeles →
AKST · Anchorage →
HST · Honolulu →
UTC · Universal →
GMT · London →
IST · New Delhi →
CET · Paris →
How Time Zone Conversion Works
Time zone conversion works by comparing the UTC offset of one location to another. Every city or region is measured relative to Coordinated Universal Time (UTC), which acts as the global reference point for civil time.
GMT is 7 hours ahead of MST (standard time).
Daylight Saving Time: Both MST and GMT observe DST, but switch on different dates. For a few weeks each spring and autumn, the gap shifts by 1 hour — a common source of missed meetings and calendar tool errors.
Best time to call London from Denver
Planning a remote meeting or international call? The optimal business hours overlap between Denver and London is moderate, with a limited shared window to work with.
Try Meeting Planner for multi-city group scheduling →MST
09:00–10:00
Mountain Time
GMT
16:00–17:00
Greenwich Time
Recommended time: 09:30 MST / 16:30 GMT
DST schedule for 2026
Current-year daylight saving start and end dates for the selected zones.
MST · Mountain Time
Standard offset −07:00
- Starts
- Mar 8, 2026 · 02:00 → 03:00
- second_sunday_of_march
- Ends
- Nov 1, 2026 · 02:00 → 01:00
- first_sunday_of_november
- Daylight time
- MDT · −06:00
Most of Arizona stays on MST year-round (does not observe DST). The Navajo Nation within Arizona does observe DST.
GMT · Greenwich Time
Standard offset +00:00
- Starts
- Mar 29, 2026 · 01:00 → 02:00
- last_sunday_of_march
- Ends
- Oct 25, 2026 · 02:00 → 01:00
- last_sunday_of_october
- Daylight time
- BST · +01:00
GMT countries vary. The UK, Ireland, and Portugal observe summer time; Iceland and most of West Africa remain on GMT year-round.
Principal Cities
MST — Mountain Time
- PhoenixUnited States
- CalgaryCanada
- EdmontonCanada
- DenverUnited States
GMT — Greenwich Time
- LondonUnited Kingdom
- DublinIreland
- LisbonPortugal
- CasablancaMorocco
Flight Information
Route
DEN ↔ LHR
Avg. flight time
9h
Direct flights
Available
~9h direct flight.