GMT to MST Converter
MST is 7 hours behind GMT
GMT to MST Conversion Table
Green rows indicate standard business hours (9 AM – 5 PM) in MST
| GMT | MST |
|---|---|
| 12:00 AM | 5:00 PM -1d |
| 1:00 AM | 6:00 PM -1d |
| 2:00 AM | 7:00 PM -1d |
| 3:00 AM | 8:00 PM -1d |
| 4:00 AM | 9:00 PM -1d |
| 5:00 AM | 10:00 PM -1d |
| 6:00 AM | 11:00 PM -1d |
| 7:00 AM | 12:00 AM |
| 8:00 AM | 1:00 AM |
| 9:00 AM | 2:00 AM |
| 10:00 AM | 3:00 AM |
| 11:00 AM | 4:00 AM |
| 12:00 PM | 5:00 AM |
| 1:00 PM | 6:00 AM |
| 2:00 PM | 7:00 AM |
| 3:00 PM | 8:00 AM |
| 4:00 PM | 9:00 AM |
| 5:00 PM | 10:00 AM |
| 6:00 PM | 11:00 AM |
| 7:00 PM | 12:00 PM |
| 8:00 PM | 1:00 PM |
| 9:00 PM | 2:00 PM |
| 10:00 PM | 3:00 PM |
| 11:00 PM | 4:00 PM |
Converting Greenwich Mean Time to Mountain Standard Time
Greenwich Mean Time (GMT) and Mountain Standard Time (MST) are separated by a 7 hours time difference. MST is 7 hours behind GMT. GMT is UTC+0, used in United Kingdom, Ireland, Portugal, while MST is UTC-7, used in United States, Canada.
When converting from GMT to MST, the key reference points to remember are: 9:00 AM GMT equals 2:00 AM MST, 12:00 PM noon GMT equals 5:00 AM MST, and 5:00 PM GMT equals 10:00 AM MST. The conversion table above shows every hour of the day mapped between these two time zones.
Scheduling Across GMT and MST
For professionals scheduling meetings between GMT and MST, finding overlapping business hours is essential. Standard business hours are typically 9:00 AM to 5:00 PM in each time zone. Given the 7 hours difference, the window of overlap may be limited. Use the highlighted working hours in the conversion table above to quickly identify suitable meeting times.
Daylight Saving Time Considerations
GMT observes Daylight Saving Time, switching to BST (UTC+1) during summer months. MST observes DST, switching to MDT (UTC-6). During DST transitions, the time difference between these zones may temporarily change by 1 hour. Always verify the current offset during spring and fall transition periods.