MST to GMT — Time Zone Converter
Mountain Time (MST, UTC−7) covers the US Mountain states; Greenwich Mean Time (GMT, UTC+0) covers the United Kingdom. In standard time, GMT is 7 hours ahead of MST. Mornings in the US Mountain states overlap with afternoons in the United Kingdom, which keeps both sides inside office hours. Use the live converter below — it applies today's IANA time zone data, including daylight saving time, and gives you a meeting schedule you can paste straight into email or Slack.
MST to GMT, hour by hour (today)
Frequently asked questions
What is the time difference between MST and GMT?+
Mountain Time (MST) is UTC−7 and Greenwich Mean Time (GMT) is UTC+0, so in standard time GMT is 7 hours ahead of MST. The gap shifts by an hour around daylight saving transitions, so always check a live converter near the change dates in spring and autumn.
Does MST or GMT observe daylight saving time?+
Mountain Time observes daylight saving time (MST in winter, MDT in summer). Greenwich Mean Time observes daylight saving time (GMT in winter, BST in summer).
What is the best time for a meeting between MST and GMT?+
Mornings in the US Mountain states overlap with afternoons in the United Kingdom, which keeps both sides inside office hours. The converter above highlights office hours in green for both zones, so you can slide to a time that works for everyone.
How do I share a MST to GMT meeting time by email?+
Pick a time in the converter, log it to the Smart Clipboard, and copy it as bullets, a formatted table, or a one-line question — with both MST and GMT times spelled out so nobody has to do the math.