The short answer

6pm in India Standard Time is 6:30am in Mountain Standard Time.

India Standard Time is 11 hours 30 minutes ahead of Mountain Standard Time. That's early morning in Mountain Standard Time, before the typical working day begins.

India Standard Time☀
6pm
Mountain Standard Time☀
6:30am
Right now
12:06pmIST · UTC+05:30 · Mon, Jun 22
12:36amMDT · UTC-06:00 · Mon, Jun 22
Read across to convert
India Standard Time
IST · UTC+05:30
12:06pm ☀
Mountain Standard Time
MDT · UTC-06:00
12:36am ☾
Pinned6pmIndia Standard Time=6:30amMountain Standard Time
12amMon
12:30pmSun ·−1d
WORK
1am
1:30pmSun ·−1d
WORK
2am
2:30pmSun ·−1d
WORK
3am
3:30pmSun ·−1d
WORK
4am
4:30pmSun ·−1d
WORK
5am
5:30pmSun ·−1d
6am
6:30pmSun ·−1d
7am
7:30pmSun ·−1d
8am
8:30pmSun ·−1d
9am
WORK
9:30pmSun ·−1d
10am
WORK
10:30pmSun ·−1d
11am
WORK
11:30pmSun ·−1d
NOW
12pm
WORK
12:30amMon
1pm
WORK
1:30am
2pm
WORK
2:30am
3pm
WORK
3:30am
4pm
WORK
4:30am
5pm
5:30am
PINNED
6pm
6:30am
7pm
7:30am
8pm
8:30am
9pm
9:30am
WORK
10pm
10:30am
WORK
11pm
11:30am
WORK
daylightnightworking hoursoverlap
Convert a specific time12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
Best time to meet
No shared working hours.

India Standard Time and Mountain Standard 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 Standard Time · prev day
12pmIndia Standard Time=12:30amMountain Standard Time
3pmIndia Standard Time=3:30amMountain Standard Time
5pmIndia Standard Time=5:30amMountain Standard Time
9pmIndia Standard Time=9:30amMountain Standard Time
In context

What each side covers.

India Standard Time
IST · UTC+05:30
12:06pm
Cities on this clock
New DelhiDelhiMumbaiBengaluru
Mountain Standard Time
MDT · UTC-06:00
12:36am
Cities on this clock
DenverEl PasoAlbuquerque
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.

Frequently asked

Quick answers about converting between India Standard Time and Mountain Standard Time. Can't find what you need? Email [email protected].

What is the time difference between India Standard Time and Mountain Standard Time?
India Standard Time is 11 hours 30 minutes 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 6pm in India Standard Time, what time is it in Mountain Standard Time?
6pm in India Standard Time is 6:30am in Mountain Standard Time. That's early morning in Mountain Standard Time, before the typical working day begins. 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 Standard Time?
There's no comfortable 9-to-5 overlap between India 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 — 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.