Convert India Standard Time to Mountain Daylight Time
| IST | MDT |
|---|---|
| 12:00 AM | 1:00 PM |
| 3:00 AM | 4:00 PM |
| 6:00 AM | 7:00 PM (-1) |
| 9:00 AM | 10:00 PM (-1) |
| 12:00 PM | 1:00 AM |
| 3:00 PM | 4:00 AM |
| 6:00 PM | 7:00 AM |
| 9:00 PM | 10:00 AM (+1) |
India Standard Time (IST) is UTC+5:30 and Mountain Daylight Time (MDT) is UTC-6. The exact difference can vary due to Daylight Saving Time changes.
Use our converter above to find the exact time. Enter 9:00 in the IST field to see the corresponding MDT time, accounting for current DST rules.
India Standard Time (IST) is based on the Asia/Kolkata timezone. DST observance depends on local regulations. Our converter automatically accounts for current DST rules.
When it is 9:00 AM IST, it is 9.5:00 PM MDT. Mountain Daylight Time (MDT, UTC-6) is 11.5 hours behind India Standard Time (IST, UTC+5:30). There is no full 9–5 overlap between IST and MDT — teams typically rotate early or late meetings.
| IST | MDT |
|---|---|
| 12:00 AM | 0.5:00 PM (-1 day) |
| 3:00 AM | 3.5:00 PM (-1 day) |
| 6:00 AM | 6.5:00 PM (-1 day) |
| 9:00 AM | 9.5:00 PM (-1 day) |
| 12:00 PM | 0.5:00 AM |
| 3:00 PM | 3.5:00 AM |
| 6:00 PM | 6.5:00 AM |
| 9:00 PM | 9.5:00 AM |
India Standard Time (IST): Mumbai, Delhi, Bangalore, Chennai, Kolkata, Colombo.
Mountain Daylight Time (MDT): Denver, Phoenix (MST only), Salt Lake City, Edmonton.
IST is UTC+5:30 and MDT is UTC-6, a difference of 11.5 hours. MDT is behind IST. This difference can shift by an hour in either direction during Daylight Saving Time transitions — if one zone observes DST and the other doesn't, the offset narrows or widens for part of the year.
Assuming a 9:00 AM – 5:00 PM workday on each side, there is no full 9–5 overlap between ist and mdt — teams typically rotate early or late meetings. To visualize this instantly for any pair of cities, use the visual meeting planner or the timezone overlap finder — both highlight the green overlap window on a live timeline.
India Standard Time (IST) is based on the Asia/Kolkata IANA timezone. DST observance depends on the jurisdiction — for example, most of the continental US switches between standard and daylight time, while India, Japan, and most of Southeast Asia do not observe DST at all. WorldClock.lol uses the authoritative IANA timezone database, so every conversion automatically accounts for the correct DST rules on the date you're converting.
When it is 9:00 AM in India Standard Time (IST, UTC+5:30), it is 9.5:00 PM in Mountain Daylight Time (MDT). For other times of day, scan the conversion table above or drop into the interactive converter to pick an exact minute. The converter handles both standard and daylight variants correctly.