Time in GST and MST
The time difference between Gulf Standard Time (GST) and Mountain Standard Time (MST) is 11 hours. Mountain Standard Time is 11 hours behind Gulf Standard Time.
This means 9am GST is 10pm MST (previous day) and 5pm GST is 6am MST.
Gulf Standard Time
- The current local time in GST is 2:42 am (July 3, 2026)
- GST time zone offset is UTC+04:00
Mountain Standard Time
- The current local time in MST is 5:42 am (July 3, 2026)
- MST time zone offset is UTC-07:00
How to convert Gulf Standard Time to Mountain Standard Time?
Subtract 11 hours from Gulf Standard Time to get Mountain Standard Time.
Time in GST
00:00
Time in MST
00:00
Use the slider above to convert Gulf Standard Time to Mountain Standard Time and view the day and night map at different times.
Day–night colors on the map:
Day
Civil twilight
Nautical twilight
Astronomical twilight
NightTime Conversion Chart
| GST | MST |
|---|---|
| 12am | 1pm |
| 1am | 2pm |
| 2am | 3pm |
| 3am | 4pm |
| 4am | 5pm |
| 5am | 6pm |
| 6am | 7pm |
| 7am | 8pm |
| 8am | 9pm |
| 9am | 10pm |
| 10am | 11pm |
| 11am | 12am |
| 12pm | 1am |
| 1pm | 2am |
| 2pm | 3am |
| 3pm | 4am |
| 4pm | 5am |
| 5pm | 6am |
| 6pm | 7am |
| 7pm | 8am |
| 8pm | 9am |
| 9pm | 10am |
| 10pm | 11am |
| 11pm | 12pm |