MST to BST Time — Convert Mountain Standard Time (US) to British Summer Time

BST is currently 7 hours ahead of MST.

MST is Mountain Standard Time (UTC−7). Most of the US Mountain zone switches to MDT (UTC−6) in summer, but Arizona (except the Navajo Nation) stays on MST year-round.

On Clockjumper, BST refers to British Summer Time (UTC+1), the UK's daylight-saving offset. The same letters are also used locally for Bangladesh Standard Time (UTC+6) — check the city or UTC offset to be sure which is meant.

BST is 7 hours ahead of MST for most of the year. Mountain Standard Time (US) and British Summer Time both observe daylight saving, but they change their clocks on different dates, so for a short period each spring and each autumn the gap differs by an hour — the converter above always reflects the correct offset for the date you pick.

Is BST ahead of or behind MST right now?

BST is currently 7 hours ahead of MST.

What is the current MST to BST time difference?

Right now the gap is 7 hours — BST is 7 hours ahead of MST.

Does the MST → BST offset change during the year?

Yes, briefly. For most of the year BST is 7 hours ahead of MST, but Mountain Standard Time (US) and British Summer Time change their clocks on different dates, so for a short period each spring and each autumn the gap differs by an hour. The converter above always reflects the correct offset for the date you pick.

Does MST observe daylight saving time?

MST is itself the standard-time form. Mountain Standard Time (US) is in force at UTC-7 through the winter months; outside that window the same zone is on MDT (UTC-6).

Does BST observe daylight saving time?

BST is itself the daylight-saving form. British Summer Time is in force at UTC+1 through the summer months; outside that window the same zone is on GMT (UTC+0).

What time is 3 AM MST in BST?

3:00 AM MST is 10:00 AM BST.

What time is 8 AM MST in BST?

8:00 AM MST is 3:00 PM BST.

What time is 9 AM MST in BST?

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

What time is 10 AM MST in BST?

10:00 AM MST is 5:00 PM BST.

What time is 11 AM MST in BST?

11:00 AM MST is 6:00 PM BST.

What time is 12 PM (noon) MST in BST?

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

What time is 2 PM MST in BST?

2:00 PM MST is 9:00 PM BST.

What time is 3 PM MST in BST?

3:00 PM MST is 10:00 PM BST.

What time is 4 PM MST in BST?

4:00 PM MST is 11:00 PM BST.

What time is 5 PM MST in BST?

5:00 PM MST is 12:00 AM (next day) BST.

What time is 9 PM MST in BST?

9:00 PM MST is 4:00 AM (next day) BST.

What time is 10 PM MST in BST?

10:00 PM MST is 5:00 AM (next day) BST.

When is the best time to schedule a call between MST and BST?

The working-hours overlap (09:00–17:00 in both zones) runs roughly 9:00 AM – 10:00 AM MST (≈ 1 hour). The midpoint of that window — 9:30 AM MST, 4:30 PM BST — is the safest single slot to propose for a live call.

What time zone does MST refer to?

MST refers to Mountain Standard Time (US) (IANA: America/Denver).

What time zone does BST refer to?

BST refers to British Summer Time (IANA: Europe/London).

Is MST on this page the same as other zones that share the letters "MST"?

MST is Mountain Standard Time (UTC−7). Most of the US Mountain zone switches to MDT (UTC−6) in summer, but Arizona (except the Navajo Nation) stays on MST year-round.

Is BST on this page the same as other zones that share the letters "BST"?

On Clockjumper, BST refers to British Summer Time (UTC+1), the UK's daylight-saving offset. The same letters are also used locally for Bangladesh Standard Time (UTC+6) — check the city or UTC offset to be sure which is meant.

• BST to MST
• AEST to MST
• BST to CDT
• CDT to MST
• BST to CET
• CET to MST
• BST to CST
• CST to MST
• BST to EDT
• EDT to MST
• BST to EST
• EST to MST
• BST to GMT
• GMT to MST
• BST to HKT

• About MST (Mountain Standard Time (US)) →
• About BST (British Summer Time) →
• All timezone conversion pages →
• Research: how daylight saving shifts workday overlap →