The short answer
12pm in China Standard Time is 10pm in Mountain Standard Time on the previous day.
China Standard Time is 14 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.
China Standard Time☀
12pm
Mountain Standard Time☾
10pm
previous day
Right now
5:28pmCST · UTC+08:00 · Mon, Jun 22
3:28amMDT · UTC-06:00 · Mon, Jun 22
Read across to convert
China Standard Time
CST · UTC+08:00
Mountain Standard Time
MDT · UTC-06:00
Pinned12pmChina Standard Time=10pmMountain Standard Time · Sun (previous day)
12amMon
10amSun ·−1d
WORK1am
11amSun ·−1d
WORK2am
12pmSun ·−1d
WORK3am
1pmSun ·−1d
WORK4am
2pmSun ·−1d
WORK5am
3pmSun ·−1d
WORK6am
4pmSun ·−1d
WORK7am
5pmSun ·−1d
8am
6pmSun ·−1d
9am
WORK7pmSun ·−1d
10am
WORK8pmSun ·−1d
11am
WORK9pmSun ·−1d
PINNED
12pm
WORK10pmSun ·−1d
1pm
WORK11pmSun ·−1d
2pm
WORK12amMon
3pm
WORK1am
4pm
WORK2am
NOW
5pm
3am
6pm
4am
7pm
5am
8pm
6am
9pm
7am
10pm
8am
11pm
9am
WORKdaylightnightworking hoursoverlap
Best time to meet=
Closest workable window
Just outside the working window — early on one side, late on the other.
China Standard Time
7am–9am
Mountain Standard Time
5pm–7pm
previous day
Popular conversions
Quick reference.
9amChina Standard Time=7pmMountain Standard Time · prev day
12pmChina Standard Time=10pmMountain Standard Time · prev day
3pmChina Standard Time=1amMountain Standard Time
5pmChina Standard Time=3amMountain Standard Time
9pmChina Standard Time=7amMountain Standard Time
In context
What each side covers.
China Standard Time
5:28pmCST · UTC+08:00
Mountain Standard Time
3:28amMDT · UTC-06:00
Cities on this clock
Related converters
Other popular pairs.
Pacific Time
2:28am
India Standard Time
2:58pm
Pacific Time to India12 hours 30 minutes behind
Eastern Standard Time
5:28am
Central European Time
11:28am
Eastern Time to Central Europe6 hours behind
India Standard Time
2:58pm
Eastern Standard Time
5:28am
India to Eastern Time9 hours 30 minutes ahead
Greenwich Mean Time
10:28am
India Standard Time
2:58pm
London to India4 hours 30 minutes behind
Pacific Standard Time
2:28am
Eastern Standard Time
5:28am
Pacific to Eastern Time3 hours behind
Central European Time
11:28am
India Standard Time
2:58pm
Central Europe to India3 hours 30 minutes behind
Frequently asked
Quick answers about converting between China Standard Time and Mountain Standard Time. Can't find what you need? Email [email protected].
- What is the time difference between China Standard Time and Mountain Standard Time?
- China Standard Time is 14 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 12pm in China Standard Time, what time is it in Mountain Standard Time?
- 12pm in China Standard Time is 10pm 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 China Standard Time and Mountain Standard Time?
- There's no comfortable 9-to-5 overlap between China Standard Time and Mountain Standard Time — they sit on opposite sides of the planet's working day. Plan for an early or late call on one side, or hand work off asynchronously.
- Does this account for daylight saving time?
- Yes. We track every clock change in both places, so the abbreviations you see — CST 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.