The short answer
6am in British Summer Time is 11pm in Mountain Standard Time on the previous day.
British Summer Time is 7 hours ahead of Mountain Standard Time. It lands deep outside working hours in Mountain Standard Time — see the best time to meet below for a friendlier slot.
British Summer Time☀
6am
Mountain Standard Time☾
11pm
previous day
Right now
10:06amBST · UTC+01:00 · Mon, Jun 22
3:06amMDT · UTC-06:00 · Mon, Jun 22
Read across to convert
British Summer Time
BST · UTC+01:00
Mountain Standard Time
MDT · UTC-06:00
Pinned6amBritish Summer Time=11pmMountain Standard Time · Sun (previous day)
12amMon
5pmSun ·−1d
1am
6pmSun ·−1d
2am
7pmSun ·−1d
3am
8pmSun ·−1d
4am
9pmSun ·−1d
5am
10pmSun ·−1d
PINNED
6am
11pmSun ·−1d
7am
12amMon
8am
1am
9am
WORK2am
NOW
10am
WORK3am
11am
WORK4am
12pm
WORK5am
1pm
WORK6am
2pm
WORK7am
3pm
WORK8am
4pm
WORK9am
WORK5pm
10am
WORK6pm
11am
WORK7pm
12pm
WORK8pm
1pm
WORK9pm
2pm
WORK10pm
3pm
WORK11pm
4pm
WORKdaylightnightworking hoursoverlap
Best time to meet=
Best for a call
British Summer Time
4pm–5pm
Mountain Standard Time
9am–10am
Popular conversions
Quick reference.
9amBritish Summer Time=2amMountain Standard Time
12pmBritish Summer Time=5amMountain Standard Time
3pmBritish Summer Time=8amMountain Standard Time
5pmBritish Summer Time=10amMountain Standard Time
9pmBritish Summer Time=2pmMountain Standard Time
In context
What each side covers.
British Summer Time
10:06amBST · UTC+01:00
Cities on this clock
Mountain Standard Time
3:06amMDT · UTC-06:00
Cities on this clock
Did you mean…? “BST” is shared by several places. This page shows British Summer Time (UK) — or switch to Bangladesh Standard Time.
Related converters
Other popular pairs.
Pacific Time
2:06am
India Standard Time
2:36pm
Pacific Time to India12 hours 30 minutes behind
Eastern Standard Time
5:06am
Central European Time
11:06am
Eastern Time to Central Europe6 hours behind
India Standard Time
2:36pm
Eastern Standard Time
5:06am
India to Eastern Time9 hours 30 minutes ahead
Greenwich Mean Time
10:06am
India Standard Time
2:36pm
London to India4 hours 30 minutes behind
Pacific Standard Time
2:06am
Eastern Standard Time
5:06am
Pacific to Eastern Time3 hours behind
Central European Time
11:06am
India Standard Time
2:36pm
Central Europe to India3 hours 30 minutes behind
Frequently asked
Quick answers about converting between British Summer Time and Mountain Standard Time. Can't find what you need? Email [email protected].
- What is the time difference between British Summer Time and Mountain Standard Time?
- British Summer Time is 7 hours ahead of Mountain Standard Time right now. We always show the live, daylight-saving-correct difference, so this figure already accounts for whichever side is observing summer time today.
- When it's 6am in British Summer Time, what time is it in Mountain Standard Time?
- 6am in British Summer Time is 11pm in Mountain Standard Time on the previous day. It lands deep outside working hours in Mountain Standard Time — see the best time to meet below for a friendlier slot. Use the hour-by-hour table above to read any other time across.
- What's the best time for a call between British Summer Time and Mountain Standard Time?
- 4pm–5pm in British Summer Time lines up with 9am–10am in Mountain Standard Time — both sides are inside a 9-to-5 working day.
- Does this account for daylight saving time?
- Yes. We track every clock change in both places, so the abbreviations you see — BST and MDT — are the ones actually in effect right now, not a fixed all-year value. When either side changes its clocks, this page updates automatically.
- Why is the date sometimes different on each side?
- When two places are far enough apart, the same moment can fall on different calendar days. That is why some conversions are marked "previous day" or "next day" — it is the same instant in time, read off two clocks that crossed midnight at different points.