Home โบ Time converters โบ IST to MT
IST to MT time converter
US Mountain is 11.5 hours behind India for 238 days of 2026, and 12.5 hours behind for the other 127 days, because daylight saving changes the gap.
IST to MT conversion table
Local time in India and the matching time in US Mountain on two reference dates, one in winter and one in summer for the northern hemisphere.
| India (IST) | US Mountain on 15 January | US Mountain on 15 July |
|---|---|---|
| 08:00 | 19:30 (-1 day) | 20:30 (-1 day) |
| 09:00 | 20:30 (-1 day) | 21:30 (-1 day) |
| 10:00 | 21:30 (-1 day) | 22:30 (-1 day) |
| 12:00 | 23:30 (-1 day) | 00:30 |
| 15:00 | 02:30 | 03:30 |
| 17:00 | 04:30 | 05:30 |
| 18:00 | 05:30 | 06:30 |
| 21:00 | 08:30 | 09:30 |
Best meeting times between India and US Mountain
- January: No overlap inside both working days. The closest flexible hours (07:00-21:00): 07:00-09:30 IST = 18:30-21:00 MT (-1 day); 19:30-21:00 IST = 07:00-08:30 MT.
- July: No overlap inside both working days. The closest flexible hours (07:00-21:00): 18:30-21:00 IST = 07:00-09:30 MT; 07:00-08:30 IST = 19:30-21:00 MT (-1 day).
Want to add more people? The meeting planner starts with these two zones and lets you add up to four more.
Daylight saving between IST and MT
- India does not change its clocks in 2026.
- US Mountain moves its clocks forward on 8 March and back on 1 November in 2026.
- The gap is 11.5 hours for 238 days and 12.5 hours for 127 days of 2026.
About the two zones
India. India uses a single time zone, UTC+5:30, all year. It does not observe daylight saving, so the gap to zones that do changes twice a year.
US Mountain. US Mountain Time is UTC-7 in winter (MST) and UTC-6 in summer (MDT). Arizona is the notable exception and stays on MST all year.
Frequently asked questions
What time is 9 AM IST in MT?
On 15 January, 09:00 in India is 20:30 (-1 day) in US Mountain. On 15 July it is 21:30 (-1 day).
What is the time difference between India and US Mountain?
US Mountain is 11.5 hours behind India for 238 days of 2026, and 12.5 hours behind for the other 127 days, because daylight saving changes the gap.
Does the time difference between IST and MT change during the year?
Yes. US Mountain changes its clocks and India does not, so the gap moves between 11.5 and 12.5 hours. Always convert with the actual date.
When is the best time for a meeting between India and US Mountain?
No overlap inside both working days. The closest flexible hours (07:00-21:00): 07:00-09:30 IST = 18:30-21:00 MT (-1 day); 19:30-21:00 IST = 07:00-08:30 MT. In July: No overlap inside both working days. The closest flexible hours (07:00-21:00): 18:30-21:00 IST = 07:00-09:30 MT; 07:00-08:30 IST = 19:30-21:00 MT (-1 day).
More conversions
Need the time in a scheduler? Convert a local-time cron schedule to UTC, or see which jobs a clock change affects with the DST collision simulator.