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MST to IST: convert Mountain Time to India Standard Time

In January, IST is 12:30 hours ahead of MST. In July it is 11:30 hours ahead of. The gap moves because the two regions handle daylight saving differently.

IST also abbreviates Israel Standard Time (UTC+2) and Irish Standard Time (UTC+1). These pages use the Indian meaning.

One instant, two local clocks

Drag one day across both zones

Shared instant12:00 UTC
Difference nowIST is 12:30 hours ahead
MSTMountain Time
05:00Thu, Jan 15
ISTIndia Standard Time
17:30Thu, Jan 15
Approximate daylight 09:00 to 17:00 Selected local time

Both lanes show the same instant. Local dates, daylight, and offsets come from each IANA zone on the selected date, so daylight saving changes are included.

Right now

MST: Mountain Time

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IST: India Standard Time

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Local times come from your browser's IANA time zone data.

MST to IST hour by hour

Two columns because the gap changes with daylight saving: use the January column roughly November to mid-March, the July column mid-March to October. Exact switch dates vary by year.

MSTIST (January)IST (July)
12:00 AM12:30 PM11:30 AM
1:00 AM1:30 PM12:30 PM
2:00 AM2:30 PM1:30 PM
3:00 AM3:30 PM2:30 PM
4:00 AM4:30 PM3:30 PM
5:00 AM5:30 PM4:30 PM
6:00 AM6:30 PM5:30 PM
7:00 AM7:30 PM6:30 PM
8:00 AM8:30 PM7:30 PM
9:00 AM9:30 PM8:30 PM
10:00 AM10:30 PM9:30 PM
11:00 AM11:30 PM10:30 PM
12:00 PM12:30 AM (next day)11:30 PM
1:00 PM1:30 AM (next day)12:30 AM (next day)
2:00 PM2:30 AM (next day)1:30 AM (next day)
3:00 PM3:30 AM (next day)2:30 AM (next day)
4:00 PM4:30 AM (next day)3:30 AM (next day)
5:00 PM5:30 AM (next day)4:30 AM (next day)
6:00 PM6:30 AM (next day)5:30 AM (next day)
7:00 PM7:30 AM (next day)6:30 AM (next day)
8:00 PM8:30 AM (next day)7:30 AM (next day)
9:00 PM9:30 AM (next day)8:30 AM (next day)
10:00 PM10:30 AM (next day)9:30 AM (next day)
11:00 PM11:30 AM (next day)10:30 AM (next day)

Scheduling a call between MST and IST

Standard business hours (9:00 AM to 5:00 PM) do not overlap in January: daytime in Mountain Time falls outside the working day in India Standard Time, so one side needs an early morning or late evening.

In July standard business hours do not overlap at all.

IST to MST (reverse)Open the full converter

More MST conversions

Offsets are computed from the IANA time zone database for January 15 and July 15 of the current year. MST here means Mountain Time (United States and Canada); IST means India Standard Time (India).