IST to MST
Converting a fixed time. Asia/Kolkata → America/Denver
Clocks here do not change — this zone stays on the same offset all year.
Clocks go back 1 hour on Sunday, 1st November 2026, at 1:59 am local time (1:00 am after the change).
Convert a specific time minutes work, not just whole hours
Hour by hour
| IST | MST | 24h | Good to call? |
|---|---|---|---|
| 12am | 12pm Thu | 00:00 → 12:30 | asleep in IST |
| 1am now | 1pm Thu | 01:00 → 13:30 | asleep in IST |
| 2am | 2pm Thu | 02:00 → 14:30 | asleep in IST |
| 3am | 3pm Thu | 03:00 → 15:30 | asleep in IST |
| 4am | 4pm Thu | 04:00 → 16:30 | asleep in IST |
| 5am | 5pm Thu | 05:00 → 17:30 | asleep in IST |
| 6am | 6pm Thu | 06:00 → 18:30 | asleep in IST |
| 7am | 7pm Thu | 07:00 → 19:30 | awake, not at work |
| 8am | 8pm Thu | 08:00 → 20:30 | awake, not at work |
| 9am | 9pm Thu | 09:00 → 21:30 | awake, not at work |
| 10am | 10pm Thu | 10:00 → 22:30 | asleep in MST |
| 11am | 11pm Thu | 11:00 → 23:30 | asleep in MST |
| 12pm | 12am | 12:00 → 00:30 | asleep in MST |
| 1pm | 1am | 13:00 → 01:30 | asleep in MST |
| 2pm | 2am | 14:00 → 02:30 | asleep in MST |
| 3pm | 3am | 15:00 → 03:30 | asleep in MST |
| 4pm | 4am | 16:00 → 04:30 | asleep in MST |
| 5pm | 5am | 17:00 → 05:30 | asleep in MST |
| 6pm | 6am | 18:00 → 06:30 | asleep in MST |
| 7pm | 7am | 19:00 → 07:30 | awake, not at work |
| 8pm | 8am | 20:00 → 08:30 | awake, not at work |
| 9pm | 9am | 21:00 → 09:30 | awake, not at work |
| 10pm | 10am | 22:00 → 10:30 | asleep in IST |
| 11pm | 11am | 23:00 → 11:30 | asleep in IST |
Call times
There is no hour when both places are inside normal working hours. The least bad slot is usually early morning at the western end.
12pm
1pm
2pm
3pm
4pm
5pm
6pm
7pm
8pm
9pm
10pm
11pm
12am
1am
2am
3am
4am
5am
6am
7am
8am
9am
10am
11am
Questions people ask
What time is it in MST when it is 5:00 pm in IST?
5:30 am in MST the same day.
How many hours ahead is MST of IST?
MST is 11 hours 30 minutes behind IST. That gap is not fixed: it changes when either place starts or ends daylight saving. The table on this page is recalculated for today, so it is already correct for the current season.
What is the best time to call between IST and MST?
There is no hour when both places are inside normal working hours. The least bad slot is usually early morning at the western end.