TimeToZone

MST to Southampton Time Converter

GMT is 7 hours ahead of MST. 9:00 AM MST = 4:00 PM GMT.

⇄ Swap
MSTfrom
Mountain Standard Time
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Southampton
Southampton, UK
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GMT is 7 hours ahead of MST at the moment. To convert MST to Southampton Time, add 7 hours to the MST time: 9:00 AM MST = 4:00 PM GMT.

MST (Mountain Time) is used in Denver, Salt Lake City, Albuquerque, Calgary, Edmonton; Phoenix (Arizona) all year. Southampton Time (Southampton time) is used in Southampton, UK.

Most of Arizona uses MST all year and does not switch to MDT.

MST to Southampton Time time conversion table

MST to Southampton Time on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.

12 AM – 7 AM MST
MSTSouthampton Time
12:00 AM7:00 AM
1:00 AM8:00 AM
2:00 AM9:00 AM
3:00 AM10:00 AM
4:00 AM11:00 AM
5:00 AM12:00 PM
6:00 AM1:00 PM
7:00 AM2:00 PM
8 AM – 3 PM MST
MSTSouthampton Time
8:00 AM3:00 PM
9:00 AM4:00 PM
10:00 AM5:00 PM
11:00 AM6:00 PM
12:00 PM7:00 PM
1:00 PM8:00 PM
2:00 PM9:00 PM
3:00 PM10:00 PM
4 PM – 11 PM MST
MSTSouthampton Time
4:00 PM11:00 PM
5:00 PM12:00 AM+1
6:00 PM1:00 AM+1
7:00 PM2:00 AM+1
8:00 PM3:00 AM+1
9:00 PM4:00 AM+1
10:00 PM5:00 AM+1
11:00 PM6:00 AM+1

Conversion table from MST to Southampton Time for 7 Nov 2026. A tick marks hours that fall between 9 AM and 5 PM in both places. +1 means the next day in Southampton Time, −1 the previous day.

  • ✓ marks 9 AM–5 PM in both places
  • Greyed times are night in the destination (10 PM–6 AM)

How to convert MST to Southampton Time

Add 7 hours to the MST time to get Southampton Time.

Example: 9:00 AM MST = 4:00 PM GMT.

Across midnight: 10:00 PM MST = 5:00 AM GMT (next day). The date changes, so always check the day as well as the hour.

Time difference between MST and Southampton Time

The time difference between MST and Southampton Time is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:

  • 31 Dec 2025 – 7 Mar 2026: Southampton Time is 7 hours ahead of MST.
  • 8 Mar 2026 – 27 Mar 2026: Southampton Time is 6 hours ahead of MST.
  • 28 Mar 2026 – 23 Oct 2026: Southampton Time is 7 hours ahead of MST.
  • 24 Oct 2026 – 31 Oct 2026: Southampton Time is 6 hours ahead of MST.
  • 1 Nov 2026 – 30 Dec 2026: Southampton Time is 7 hours ahead of MST.

MST and Southampton Time during daylight saving time

  • MST next changes on 14 Mar 2027: clocks go forward one hour at 01:59 local time, from MST (UTC−7) to MDT (UTC−6).
  • Southampton Time next changes on 28 Mar 2027: clocks go forward one hour at 00:59 local time, from GMT (UTC+0) to BST (UTC+1).

Best time for a meeting between MST and Southampton Time

MST and Southampton Time share 1 hour of the 9 AM–5 PM working day. Any time between 9:00 AM and 10:00 AM MST lands between 4:00 PM and 5:00 PM GMT, inside working hours for both.

Plan a meeting across more time zones.

MST to Southampton Time FAQ

What is the time difference between MST and Southampton Time?

Right now GMT is 7 hours ahead of MST. The gap changes 5 times in 2026 because the two sides switch to daylight saving time on different dates.

What is 9 AM MST in Southampton Time?

9:00 AM MST is 4:00 PM GMT.

What is 12 PM (noon) MST in Southampton Time?

12:00 PM MST is 7:00 PM GMT.

Is Southampton Time ahead of or behind MST?

GMT is 7 hours ahead of MST, so it is later in Southampton Time than in MST.

Does MST change for daylight saving time?

Yes. MST next changes on 14 Mar 2027, when clocks go forward one hour from MST to MDT.

Does Southampton Time change for daylight saving time?

Yes. Southampton Time next changes on 28 Mar 2027, when clocks go forward one hour from GMT to BST.

What is the best time for a meeting between MST and Southampton Time?

MST and Southampton Time share 1 hour of the 9 AM–5 PM working day. Any time between 9:00 AM and 10:00 AM MST lands between 4:00 PM and 5:00 PM GMT, inside working hours for both.

Is MT the same as MST?

MST is the winter (standard) name of Mountain Time (MT). From March to November the same clocks are called MDT. This converter always uses the one in force on the date you choose.

Related conversions

Convert Southampton Time to MST

Southampton Time to MST

Convert MST to other time zones

MST to ESTMST to PSTMST to CSTMST to Abbotsford TimeMST to Abidjan TimeMST to Abu Dhabi TimeMST to Adelaide TimeMST to AESTMST to Blackpool TimeMST to Bogota TimeMST to Bonn TimeMST to Bordeaux Time

Convert other time zones to Southampton Time

AEST to Southampton TimeCET to Southampton TimeCST to Southampton TimeEST to Southampton TimeGMT to Southampton TimeIST to Southampton TimeJST to Southampton TimePST to Southampton TimeSGT to Southampton TimeUTC to Southampton Time

Learn more

MST time zoneCurrent time in Southampton

Updated 7 November 2026. Time zone data: IANA tz database.