MST to GMT: Convert US Mountain to GMT / UTC Time
Need to convert MST to GMT? GMT / UTC is +7 hours from US Mountain (MST). Whether you are scheduling a call, planning a meeting, or coordinating with a remote team, this quick reference shows common time conversions between MST and GMT. Use our Timezone Converter for any custom time.
Quick Answer
| Label | Value |
|---|---|
| 9:00 AM MST | 4:00 PM GMT |
| 12:00 PM MST | 7:00 PM GMT |
| 3:00 PM MST | 10:00 PM GMT |
| 6:00 PM MST | 1:00 AM GMT (next day) |
How It Works
GMT = MST +7 hours. US Mountain (MST) is UTC-7 and GMT / UTC is UTC+0. The difference is +7 hours. Add +7 hours to any MST time to get GMT. If the result exceeds 11:59 PM, it rolls to the next day. Our Timezone Converter handles all the math including half-hour offsets and day boundaries.
Use Our Calculator
Try our Timezone Converter for your own numbers: /calculators/timezone-converter
Related Calculators
9:00 AM MST is 4:00 PM GMT. The offset is +7 hours.
This converter uses standard time offsets. During daylight saving in either region, the offset may shift by 1 hour. Check specific dates for accuracy.
Look for overlapping business hours (9 AM - 5 PM) in both zones. With a +7-hour difference, the overlap depends on how far apart the zones are. Use our converter to check specific times.