London
Denver
Convert GMT to MST
Greenwich Mean Time to Mountain Standard Time — Denver is 7 hours behind London
Quick Facts
Time Difference
-7 hours
GMT Full Name
Greenwich Mean Time
MST Full Name
Mountain Standard Time
GMT to MST Conversion Table
Related Conversions
About GMT and MST Time Zones
GMT (Greenwich Mean Time) is UTC+0 and covers cities like London, Dublin, Lisbon. MST (Mountain Standard Time) is UTC-7 and covers cities like Denver, Phoenix, Salt Lake City.
When it's 12:00 PM (noon) in London (GMT), it's 5:00 AM in Denver (MST). The time difference between GMT and MST is 7 hours — Denver is behind London.
The best meeting window is 9:00 AM–10:00 AM GMT (4:00 PM–5:00 PM MST).
Daylight Saving Time
MST observes Daylight Saving Time and becomes MDT (Mountain Daylight Time) during summer months, shifting clocks forward by 1 hour to UTC-6.
During DST transitions, the time difference between GMT and MST may shift by ±1 hour. Always verify the current offset above for the most accurate conversion.
Use our world clock tool to compare London and Denver with a visual timeline, or browse more timezone conversions.
Frequently Asked Questions
What is the time difference between GMT and MST?
Denver (MST) is 7 hours behind London (GMT). The offset is -7 hours.
Is MST ahead or behind GMT?
MST is 7 hours behind GMT. GMT is UTC+1 and MST is UTC-6.
When it's 12:00 PM in London, what time is it in Denver?
When it's 12:00 PM (noon) in London (GMT), it's 5:00 AM in Denver (MST).
When it's 5:00 PM in London, what time is it in Denver?
When it's 5:00 PM in London (GMT), it's 10:00 AM in Denver (MST).
Does MST change for Daylight Saving Time?
Yes. MST (Mountain Standard Time, UTC-7) becomes MDT (Mountain Daylight Time, UTC-6) in summer, shifting clocks forward 1 hour.