The short answer
12am in India Standard Time is 12:30pm in Mountain Time on the previous day.
India Standard Time is 11 hours 30 minutes ahead of Mountain Time. It falls outside the 9-to-5 in India Standard Time but lands inside working hours in Mountain Time.
India Standard Time☾
12am
Mountain Time☀
12:30pm
previous day
Right now
2:26pmIST · UTC+05:30 · Mon, Jun 22
2:56amMDT · UTC-06:00 · Mon, Jun 22
Read across to convert
India Standard Time
IST · UTC+05:30
Mountain Time
MDT · UTC-06:00
Pinned12amIndia Standard Time=12:30pmMountain Time · Sun (previous day)
PINNED
12amMon
12:30pmSun ·−1d
WORK1am
1:30pmSun ·−1d
WORK2am
2:30pmSun ·−1d
WORK3am
3:30pmSun ·−1d
WORK4am
4:30pmSun ·−1d
WORK5am
5:30pmSun ·−1d
6am
6:30pmSun ·−1d
7am
7:30pmSun ·−1d
8am
8:30pmSun ·−1d
9am
WORK9:30pmSun ·−1d
10am
WORK10:30pmSun ·−1d
11am
WORK11:30pmSun ·−1d
12pm
WORK12:30amMon
1pm
WORK1:30am
NOW
2pm
WORK2:30am
3pm
WORK3:30am
4pm
WORK4:30am
5pm
5:30am
6pm
6:30am
7pm
7:30am
8pm
8:30am
9pm
9:30am
WORK10pm
10:30am
WORK11pm
11:30am
WORKdaylightnightworking hoursoverlap
Best time to meet
No shared working hours.
India Standard Time and Mountain Time are too far apart for a working-day overlap. The least-unsociable option is an early-morning call on one side and an evening one on the other — or hand work off asynchronously and let the planet do the waiting.
Popular conversions
Quick reference.
9amIndia Standard Time=9:30pmMountain Time · prev day
12pmIndia Standard Time=12:30amMountain Time
3pmIndia Standard Time=3:30amMountain Time
5pmIndia Standard Time=5:30amMountain Time
9pmIndia Standard Time=9:30amMountain Time
In context
What each side covers.
India Standard Time
2:26pmIST · UTC+05:30
Mountain Time
2:56amMDT · UTC-06:00
Cities on this clock
Did you mean…? “IST” is shared by several places. This page shows India Standard Time (India) — or switch to Israel Standard Time · Irish Standard Time.
Related converters
Other popular pairs.
Pacific Time
1:56am
India Standard Time
2:26pm
Pacific Time to India12 hours 30 minutes behind
Eastern Standard Time
4:56am
Central European Time
10:56am
Eastern Time to Central Europe6 hours behind
India Standard Time
2:26pm
Eastern Standard Time
4:56am
India to Eastern Time9 hours 30 minutes ahead
Greenwich Mean Time
9:56am
India Standard Time
2:26pm
London to India4 hours 30 minutes behind
Pacific Standard Time
1:56am
Eastern Standard Time
4:56am
Pacific to Eastern Time3 hours behind
Central European Time
10:56am
India Standard Time
2:26pm
Central Europe to India3 hours 30 minutes behind
Frequently asked
Quick answers about converting between India Standard Time and Mountain Time. Can't find what you need? Email [email protected].
- What is the time difference between India Standard Time and Mountain Time?
- India Standard Time is 11 hours 30 minutes ahead of Mountain 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 12am in India Standard Time, what time is it in Mountain Time?
- 12am in India Standard Time is 12:30pm in Mountain Time on the previous day. It falls outside the 9-to-5 in India Standard Time but lands inside working hours in Mountain Time. Use the hour-by-hour table above to read any other time across.
- What's the best time for a call between India Standard Time and Mountain Time?
- There's no comfortable 9-to-5 overlap between India Standard Time and Mountain 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 — IST 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.