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Time zonesLive · DST-aware

GST to MST Converter

See the current time in GST (Dubai) and MST (Denver) side by side, the exact time difference right now, and convert any time between the two zones.

Quick presets

GST to MST Converter

GST
Dubai
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MST
Denver
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Uses your browser's built-in, DST-aware time-zone data.

ToolFeather · Intl API

About converting GST to MST

Gulf Time (Dubai) (Dubai) and Mountain Time (Denver) are in different time zones, so a meeting, call or stream that's convenient in one may be early or late in the other. The clocks above update live and account for daylight saving automatically, so the time difference you see is the real one for today — not a fixed number that goes stale twice a year.

To plan across the two, type a time into the GST box (or tap a quick preset) and read the MST equivalent, including a "next day" or "previous day" note when the conversion crosses midnight. For any other pair of zones or cities, use the full timezone converter.

GST vs MST: the time difference through the year

The gap between GST and MST changes during the year because only one of them uses daylight saving.

PeriodDifference
Oct 23, 2026 – Oct 31, 2026MST 10 h behind GST
Nov 1, 2026 – Mar 13, 2027MST 11 h behind GST
Mar 14, 2027 – Oct 23, 2027MST 10 h behind GST

Daylight-saving changes in the next year

ZoneDateOffsetChange
MSTNov 1, 2026UTC−6 → UTC−7Clocks go back 1 hour
MSTMar 14, 2027UTC−7 → UTC−6Clocks go forward 1 hour
MSTNov 7, 2027UTC−6 → UTC−7Clocks go back 1 hour

GST to MST conversion table

GSTMST (when 10 h behind)MST (when 11 h behind)
12:00 AM2:00 PM (previous day)1:00 PM (previous day)
1:00 AM3:00 PM (previous day)2:00 PM (previous day)
2:00 AM4:00 PM (previous day)3:00 PM (previous day)
3:00 AM5:00 PM (previous day)4:00 PM (previous day)
4:00 AM6:00 PM (previous day)5:00 PM (previous day)
5:00 AM7:00 PM (previous day)6:00 PM (previous day)
6:00 AM8:00 PM (previous day)7:00 PM (previous day)
7:00 AM9:00 PM (previous day)8:00 PM (previous day)
8:00 AM10:00 PM (previous day)9:00 PM (previous day)
9:00 AM11:00 PM (previous day)10:00 PM (previous day)
10:00 AM12:00 AM11:00 PM (previous day)
11:00 AM1:00 AM12:00 AM
12:00 PM2:00 AM1:00 AM
1:00 PM3:00 AM2:00 AM
2:00 PM4:00 AM3:00 AM
3:00 PM5:00 AM4:00 AM
4:00 PM6:00 AM5:00 AM
5:00 PM7:00 AM6:00 AM
6:00 PM8:00 AM7:00 AM
7:00 PM9:00 AM8:00 AM
8:00 PM10:00 AM9:00 AM
9:00 PM11:00 AM10:00 AM
10:00 PM12:00 PM11:00 AM
11:00 PM1:00 PM12:00 PM

Best time to meet

The two zones

GST · Gulf Time (Dubai)

Gulf Standard Time is UTC+4 all year, used in the UAE (Dubai, Abu Dhabi) and Oman. There is no daylight saving.

MST · Mountain Time

Mountain Time is UTC−7 in winter (MST) and UTC−6 in summer (MDT) for Denver, Salt Lake City and Calgary. Most of Arizona stays on MST (UTC−7) all year.

Frequently asked questions

6 answers
What is the time difference between GST and MST?
It's shown live at the top of this page (and it can change with daylight saving). The converter uses the current, DST-aware difference between Gulf Time (Dubai) and Mountain Time, so the time you see is always right for right now.
How do I convert GST to MST?
Enter a time in the GST box and the equivalent MST time appears instantly, adjusted for the current offset between the two zones — including a note if it lands on the previous or next day.
Is this GST to MST converter accurate with daylight saving?
Yes. It uses your browser's built-in time-zone database (the IANA zones behind Dubai and Denver), which tracks daylight-saving changes automatically, so the current times and difference are correct.
What time is it in Denver right now?
The live clock above shows the current time in Denver (MST), updating every second, alongside GST.
Does the GST to MST time difference change?
Yes. Over the next 12 months it is 10 h behind or 11 h behind, depending on the date — see the table of periods on this page.
What is a good meeting time for GST and MST?
Standard 9-to-5 office hours don't overlap; early morning in one zone and evening in the other is the usual compromise — see the table on this page.