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Stadsgegevens van GeoNames (CC BY 4.0). Tijdzonegegevens uit de IANA-tijdzonedatabase.

  1. WorldClockTools
  2. Tijdzone-omrekener
  3. MDT -> IST

Timezone converter

MDT naar IST Converter.

MDT → ISTGap: +11h 30mNo 9-5 overlap

MDT to IST currently uses Mountain Time in America/Ciudad_Juarez and India Time in Asia/Kolkata as the live reference pair, with a +11h 30m live gap. MDT to IST matters whenever Ciudad Juárez and Mumbai need to coordinate across a +11h 30m gap. The MDT side covers Mexico and Canada, while IST covers India and Israel — that country mix is the practical reason this conversion shows up in calendars rather than the abstract offset math.

Last updated Apr 26, 2026. Offset math, DST behavior, and city coverage on both sides are refreshed from the live timezone dataset during the page revalidation window.

How this is calculated

How we calculate this
The current offset for each abbreviation is resolved against the live IANA timezone rules. Conversion accounts for DST transitions on both sides, so the gap between MDT and IST can change by an hour twice a year.
Data sources
IANA Time Zone Database (offsets, DST). City attribution from GeoNames (CC BY 4.0).
Update cadence
Page regenerates daily; live offset values reflect the moment the page is rendered.
Reverse: IST → MDT

Ambiguity note

IST is ambiguous in this dataset, so the live converter uses Asia/Kolkata as the busiest reference zone while the city list below shows the wider label family.

From

MDT

Mountain Time

America/Ciudad_Juarez · MDT -06:00

--:--:--

Major markets in this grouping include Ciudad Juárez, Calgary, Edmonton, Denver.

To

IST

India Time

Asia/Kolkata · GMT+5:30 +05:30

--:--:--

Major markets in this grouping include Mumbai, Delhi, Bengaluru, Hyderabad.

Scheduling snapshot

Current gap

+11h 30m

MDT -06:00 vs IST +05:30

9-to-5 overlap

No shared block

Meetings usually need an early or late handoff.

Representative countries

Mexico, Canada, and United States / India, Israel, and Sri Lanka

Based on the busiest city and zone usage found in the current dataset.

Pair context

MDT (Ciudad Juárez, -06:00) to IST (Mumbai, +05:30) is currently a +11h 30m conversion. Live coverage on the MDT side is anchored by Ciudad Juárez, Calgary, Edmonton, and Denver; the IST side draws from Mumbai, Delhi, Bengaluru, and Hyderabad.

MDT to IST matters whenever Ciudad Juárez and Mumbai need to coordinate across a +11h 30m gap. The MDT side covers Mexico and Canada, while IST covers India and Israel — that country mix is the practical reason this conversion shows up in calendars rather than the abstract offset math.

This pair is trans-Pacific, with one side in the Americas and the other in Asia or Oceania. The +11h 30m gap is large enough that morning on one side reliably overlaps evening on the other, which is why this conversion mostly serves global supply chains, gaming launch schedules, and follow-the-sun engineering.

MDT follows seasonal clock changes through America/Ciudad_Juarez, while IST stays on a fixed offset year-round. That asymmetry is the real differentiator on this page: the gap widens or narrows by an hour twice a year, so calendar invites scheduled in one season often look wrong in the other.

MDT and IST sit 11h 30m apart, which leaves no shared 9-to-5 block. Live meetings have to bend one side's day, so most teams settle for one of two narrow windows: very early on the late side, or very late on the early side. That makes async messages, recorded standups, and clear handoff notes more valuable than calendar invites.

Market coverage on both sides

MDT coverage on this page is led by Ciudad Juárez, Mexico, Calgary, Canada, Edmonton, Canada, and Denver, United States, with 2 more in the live dataset. That mix is what makes MDT feel anchored to West Coast and Pacific-edge American activity in practice rather than just an abbreviation on a chart.

IST coverage is led by Mumbai, India, Delhi, India, Bengaluru, India, and Hyderabad, India, with 2 more anchoring the wider label family. Combined with the MDT side, this conversion ends up describing trans-Pacific outsourcing handoffs, gaming and entertainment release windows, and follow-the-sun engineering rotations.

Digit-Roll Converter

Adjust the time — digits roll like an odometer. Swap button flips the zones.

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Common meeting times

MDT to IST meeting times

Quick conversions for 9 AM, noon, 3 PM, 6 PM, and 9 PM based on today's local calendar.

MDTISTDay relation
9:00 AM8:30 PMSun, Apr 26same day
12:00 PM11:30 PMSun, Apr 26same day
3:00 PM2:30 AMMon, Apr 27next day
6:00 PM5:30 AMMon, Apr 27next day
9:00 PM8:30 AMMon, Apr 27next day

IST to MDT meeting times

Quick conversions for 9 AM, noon, 3 PM, 6 PM, and 9 PM based on today's local calendar.

ISTMDTDay relation
9:00 AM9:30 PMSun, Apr 26previous day
12:00 PM12:30 AMMon, Apr 27same day
3:00 PM3:30 AMMon, Apr 27same day
6:00 PM6:30 AMMon, Apr 27same day
9:00 PM9:30 AMMon, Apr 27same day

Operational notes

MDT to IST ranges from MDT 9:00 AM (which lands at IST 8:30 PM) through MDT 9:00 PM (IST 8:30 AM). Most of those slots fall on a different calendar day on the IST side, which is why this direction always needs explicit dates in invites and ticket comments — the time alone is not enough.

IST to MDT ranges from IST 9:00 AM (which lands at MDT 9:30 PM) through IST 9:00 PM (MDT 9:30 AM). With no clean 9-to-5 overlap between IST and MDT, both ends of this range push outside standard hours — useful for recorded standups and async work, awkward for live calls.

Popular hour answers

These direct answers are here for the exact-intent searches people actually use, like “10 AM MDT to IST” or “4 PM MDT in IST”.

8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM9 PM

What is 8 AM MDT in IST?

8 AM MDT = 7:30 PM IST (19:30). On today's live calendar that lands on Sun, Apr 26 in IST, which means the answer is a same day conversion rather than a static offset lookup.

What is 9 AM MDT in IST?

9 AM MDT = 8:30 PM IST (20:30). On today's live calendar that lands on Sun, Apr 26 in IST, which means the answer is a same day conversion rather than a static offset lookup.

What is 10 AM MDT in IST?

10 AM MDT = 9:30 PM IST (21:30). On today's live calendar that lands on Sun, Apr 26 in IST, which means the answer is a same day conversion rather than a static offset lookup.

What is 11 AM MDT in IST?

11 AM MDT = 10:30 PM IST (22:30). On today's live calendar that lands on Sun, Apr 26 in IST, which means the answer is a same day conversion rather than a static offset lookup.

What is 12 PM MDT in IST?

12 PM MDT = 11:30 PM IST (23:30). On today's live calendar that lands on Sun, Apr 26 in IST, which means the answer is a same day conversion rather than a static offset lookup.

What is 1 PM MDT in IST?

1 PM MDT = 12:30 AM IST (00:30). On today's live calendar that lands on Mon, Apr 27 in IST, which means the answer is a next day conversion rather than a static offset lookup.

What is 2 PM MDT in IST?

2 PM MDT = 1:30 AM IST (01:30). On today's live calendar that lands on Mon, Apr 27 in IST, which means the answer is a next day conversion rather than a static offset lookup.

What is 3 PM MDT in IST?

3 PM MDT = 2:30 AM IST (02:30). On today's live calendar that lands on Mon, Apr 27 in IST, which means the answer is a next day conversion rather than a static offset lookup.

What is 4 PM MDT in IST?

4 PM MDT = 3:30 AM IST (03:30). On today's live calendar that lands on Mon, Apr 27 in IST, which means the answer is a next day conversion rather than a static offset lookup.

What is 5 PM MDT in IST?

5 PM MDT = 4:30 AM IST (04:30). On today's live calendar that lands on Mon, Apr 27 in IST, which means the answer is a next day conversion rather than a static offset lookup.

What is 6 PM MDT in IST?

6 PM MDT = 5:30 AM IST (05:30). On today's live calendar that lands on Mon, Apr 27 in IST, which means the answer is a next day conversion rather than a static offset lookup.

What is 9 PM MDT in IST?

9 PM MDT = 8:30 AM IST (08:30). On today's live calendar that lands on Mon, Apr 27 in IST, which means the answer is a next day conversion rather than a static offset lookup.

Overlap window and DST radar

The live gap is +11h 30m right now, based on America/Ciudad_Juarez at -06:00 and Asia/Kolkata at +05:30. America/Ciudad_Juarez changes offset on November 1, 2026, so the gap moves to +12h 30m after that transition.

There is no strict 9 AM to 5 PM overlap right now, so this pair is better for handoffs, travel planning, or async coordination than for midday meetings.

America/Ciudad_Juarez changes from -07:00 (MST) to -07:00 (MST) on November 1, 2026 at about 1:29 AM.

Reference zones

America/Ciudad_Juarez

MDT · -06:00

Asia/Kolkata

GMT+5:30 · +05:30

These are the busiest live references selected from the abbreviation families on this page.

Omrekeningstabel

MDTIST
18:0005:30
19:0006:30
20:0007:30
21:0008:30
22:0009:30
23:0010:30
00:0011:30
01:0012:30
02:0013:30
03:0014:30
04:0015:30
05:0016:30
06:0017:30
07:0018:30
08:0019:30
09:0020:30
10:0021:30
11:0022:30
12:0023:30
13:0000:30
14:0001:30
15:0002:30
16:0003:30
17:0004:30

Top cities using MDT

Countries represented here include Mexico, Canada, and United States.

Ciudad JuárezMexicoCalgaryCanadaEdmontonCanadaDenverUnited StatesEl PasoUnited StatesAlbuquerqueUnited StatesColorado SpringsUnited StatesAuroraUnited StatesSalt Lake CityUnited StatesFort CollinsUnited States

Top cities using IST

Countries represented here include India, Israel, and Sri Lanka.

MumbaiIndiaDelhiIndiaBengaluruIndiaHyderabadIndiaAhmedabadIndiaChennaiIndiaKolkataIndiaSuratIndiaPuneIndiaJaipurIndia

FAQ

How many hours is IST ahead of MDT?
IST is currently +11h 30m relative to MDT, using America/Ciudad_Juarez and Asia/Kolkata as the live reference zones on this page.
What is the best workday overlap between MDT and IST?
There is no strict 9-to-5 overlap right now, so one side usually needs an early start or late finish for live meetings.
Does the MDT-IST time difference change during DST?
The live gap is +11h 30m right now, based on America/Ciudad_Juarez at -06:00 and Asia/Kolkata at +05:30. America/Ciudad_Juarez changes offset on November 1, 2026, so the gap moves to +12h 30m after that transition.
Which cities commonly use MDT and IST?
MDT commonly covers cities such as Ciudad Juárez, Calgary, Edmonton, and Denver, while IST commonly covers cities such as Mumbai, Delhi, Bengaluru, and Hyderabad.
Should I use MDT/IST or exact IANA zones?
Use the abbreviations for a quick read, but use exact IANA zones such as America/Ciudad_Juarez and Asia/Kolkata when you need something precise in software, travel plans, or long-range scheduling.
Open Interactieve Converter

Gerelateerde Conversies

EST → ISTPST → ISTCST → ISTMST → ISTGMT → ISTUTC → ISTIST → CETIST → CESTIST → JSTIST → AESTIST → AEDTIST → BST

Related planning pages

Once a conversion pair matters, people usually need a city page, compare page, or a broader browse surface next.

Interactive converter

Move from this static pair into the full timezone converter with more cities and abbreviations.

Compare city pairs

Use compare pages when the practical question is overlap, not just offset arithmetic.

World clock

Open live city clocks after narrowing the timezone pair you care about.

Browse city pages

Jump into the strongest city pages when you want location-specific timezone context.