IST to MST Time Converter
Convert India Standard Time to Mountain Time instantly.
Scroll the timeline to check any hour of the day.
India Standard Time
IST
1:54
Mountain Time
MST
2:24
IST is on standard time (IST), while MST is on daylight savings (MDT) right now.
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How the IST to MST time difference works
MST is 11 hours 30 minutes behind IST. India Standard Time (IST) is the time zone of India and Sri Lanka. Mountain Time (MST) is the US Mountain time zone. For example, 9:00 AM IST is 9:30 PM MST. Scroll the timeline above to convert any moment, or use the chart below for a quick reference.
Time difference
11 hours 30 minutes
Daylight saving
MST only
IST offset
UTC+5:30
MST offset
UTC-7
IST to MST conversion chart
| India Standard Time (IST) | Mountain Time (MST) |
|---|---|
| 12:00 AM | 12:30 PM -1 day |
| 1:00 AM | 1:30 PM -1 day |
| 2:00 AM | 2:30 PM -1 day |
| 3:00 AM | 3:30 PM -1 day |
| 4:00 AM | 4:30 PM -1 day |
| 5:00 AM | 5:30 PM -1 day |
| 6:00 AM | 6:30 PM -1 day |
| 7:00 AM | 7:30 PM -1 day |
| 8:00 AM | 8:30 PM -1 day |
| 9:00 AM | 9:30 PM -1 day |
| 10:00 AM | 10:30 PM -1 day |
| 11:00 AM | 11:30 PM -1 day |
| 12:00 PM | 12:30 AM |
| 1:00 PM | 1:30 AM |
| 2:00 PM | 2:30 AM |
| 3:00 PM | 3:30 AM |
| 4:00 PM | 4:30 AM |
| 5:00 PM | 5:30 AM |
| 6:00 PM | 6:30 AM |
| 7:00 PM | 7:30 AM |
| 8:00 PM | 8:30 AM |
| 9:00 PM | 9:30 AM |
| 10:00 PM | 10:30 AM |
| 11:00 PM | 11:30 AM |
Cities in each time zone
India Standard Time (IST)
MumbaiDelhiBengaluruKolkataChennaiHyderabad
Mountain Time (MST)
DenverSalt Lake CityAlbuquerqueBoiseColorado Springs
IST to MST questions
Is MST ahead of or behind IST?
MST is 11 hours 30 minutes behind IST. So 9:00 AM IST is 9:30 PM MST, and 5:00 PM IST is 5:30 AM MST.
What time is it in MST when it is 12:00 PM IST?
When it is 12:00 PM (noon) IST in India Standard Time, it is 12:30 AM MST in Mountain Time.
How many hours difference is there between IST and MST?
There is a 11 hours 30 minutes difference. Mountain Time (MST) runs 11 hours 30 minutes behind India Standard Time (IST).
Do IST and MST observe daylight saving time?
Mountain Time observes daylight saving time but India Standard Time does not, so the difference between them changes by an hour twice a year.
What is the best time to schedule a meeting between IST and MST?
A standard 9-to-5 workday in India Standard Time and Mountain Time does not overlap, so pick the early morning in the later zone or the late evening in the earlier zone.
Which cities use IST and MST?
India Standard Time (IST) covers cities such as Mumbai, Delhi, Bengaluru, Kolkata, Chennai, Hyderabad. Mountain Time (MST) covers cities such as Denver, Salt Lake City, Albuquerque, Boise, Colorado Springs.