Gulf Standard Time to US Mountain Time
Convert times between Gulf Standard Time (GST, UTC+4:00) and US Mountain Time (MST, UTC-7:00). US Mountain Time is 11 hours behind Gulf Standard Time in standard time. During daylight saving time this difference changes to 10 hours.
UTC+4:00→UTC-7:00 / -6:00
Live timezone converterUTC Offset Reference
| Timezone | Abbreviation | Standard offset | DST offset | Country |
|---|---|---|---|---|
| Gulf Standard Time | GST | UTC+4:00 | — | UAE / Oman |
| US Mountain Time | MST / MDT | UTC-7:00 | UTC-6:00 | United States |
* DST offset applies during summer months. Exact transition dates vary by year.
Standard Time Conversion (GST → MST)
| Gulf Standard Time | US Mountain Time |
|---|---|
| 12:00 AM GST | 1:00 PM (prev day) MST |
| 6:00 AM GST | 7:00 PM (prev day) MST |
| 9:00 AM GST | 10:00 PM (prev day) MST |
| 12:00 PM GST | 1:00 AM MST |
| 3:00 PM GST | 4:00 AM MST |
| 6:00 PM GST | 7:00 AM MST |
| 9:00 PM GST | 10:00 AM MST |
Summer (DST) Conversion (GST → MDT)
| Gulf Standard Time (summer) | US Mountain Time (summer) |
|---|---|
| 12:00 AM GST | 2:00 PM (prev day) MDT |
| 6:00 AM GST | 8:00 PM (prev day) MDT |
| 9:00 AM GST | 11:00 PM (prev day) MDT |
| 12:00 PM GST | 2:00 AM MDT |
| 3:00 PM GST | 5:00 AM MDT |
| 6:00 PM GST | 8:00 AM MDT |
| 9:00 PM GST | 11:00 AM MDT |
Daylight Saving Time (DST) Notes
- US Mountain Time observes DST. Clocks advance 1 hour to MDT (UTC-6:00) roughly from month 3 to 11.
- The offset difference shifts between 11h (standard) and 10h (DST season). Always verify the current offset using the live converter below.
Frequently Asked Questions
How do I convert GST to MST?
Add (-11) hours to the GST time to get MST. For example, 9:00 AM GST = 10:00 PM MST.
What is the current UTC offset for Gulf Standard Time?
Gulf Standard Time is always UTC+4:00 (GST) — it does not observe DST.
Is US Mountain Time ahead or behind Gulf Standard Time?
US Mountain Time is 11 hours behind Gulf Standard Time in standard time.
When is a good time to schedule a meeting between GST and MST?
Due to the 11-hour difference, business-hours overlap may be limited. Use the live timezone converter to find a mutually convenient time.
Related Timezone Conversions
Gulf Standard Time → US Eastern TimeGST / ESTGulf Standard Time → US Central TimeGST / CSTGulf Standard Time → US Pacific TimeGST / PSTGulf Standard Time → US Alaska TimeGST / AKSTGulf Standard Time → Hawaii TimeGST / HSTGulf Standard Time → Canada Atlantic TimeGST / ASTGulf Standard Time → Greenwich Mean TimeGST / GMTGulf Standard Time → India Standard TimeGST / IST
Need the exact current time?
Use the live ToolsHub timezone converter to see current times, DST status, and schedule across time zones.