IST to MDT Converter
Quick answers
Selected conversion
5:30 pm17:30 IST (UTC+5:30), Oct 5, 2026 = 6:00 am06:00 MDT (UTC-6), Oct 5, 2026
IST is 11 hours and 30 minutes ahead of MDT.
IST and MDT examples
These examples always use IST (UTC+5:30) and MDT (UTC-6). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
IST is 11 hours and 30 minutes ahead of MDT.
How the time difference changes
For most of the year, IST is 11 hours and 30 minutes ahead of MDT. At other times of the year, IST is 12 hours and 30 minutes ahead of MST.
For most of the year, working hours of 9:00 am to 5:00 pm in IST correspond to 9:30 pm (previous day) to 5:30 am in MDT. At other times of the year, working hours of 9:00 am to 5:00 pm in IST correspond to 8:30 pm (previous day) to 4:30 am in MST.For most of the year, working hours of 09:00 to 17:00 in IST correspond to 21:30 (previous day) to 05:30 in MDT. At other times of the year, working hours of 09:00 to 17:00 in IST correspond to 20:30 (previous day) to 04:30 in MST.
Compare IST time with MDT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
India Standard Time is 11 hours and 30 minutes ahead of Mountain Daylight Time.
5:30 pm17:30 in IST is 6:00 am06:00 in MDT
IST to MDT call time
Best time for a conference call or a meeting is between 6:30pm-7:30pm18:30-19:30 in IST which corresponds to 7am-8am07:00-08:00 in MDT
5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
6:00 am06:00 Mountain Daylight Time (MDT). Offset UTC -6:00 hours
5:30 pm17:30 IST / 6:00 am06:00 MDT
| IST | MDT |
|---|---|
| 12:00am | 12:30pm |
| 1:00am | 1:30pm |
| 2:00am | 2:30pm |
| 3:00am | 3:30pm |
| 4:00am | 4:30pm |
| 5:00am | 5:30pm |
| 6:00am | 6:30pm |
| 7:00am | 7:30pm |
| 8:00am | 8:30pm |
| 9:00am | 9:30pm |
| 10:00am | 10:30pm |
| 11:00am | 11:30pm |
| 12:00pm | 12:30am |
| 1:00pm | 1:30am |
| 2:00pm | 2:30am |
| 3:00pm | 3:30am |
| 4:00pm | 4:30am |
| 5:00pm | 5:30am |
| 6:00pm | 6:30am |
| 7:00pm | 7:30am |
| 8:00pm | 8:30am |
| 9:00pm | 9:30am |
| 10:00pm | 10:30am |
| 11:00pm | 11:30am |
| 00:00 | 12:30 |
| 01:00 | 13:30 |
| 02:00 | 14:30 |
| 03:00 | 15:30 |
| 04:00 | 16:30 |
| 05:00 | 17:30 |
| 06:00 | 18:30 |
| 07:00 | 19:30 |
| 08:00 | 20:30 |
| 09:00 | 21:30 |
| 10:00 | 22:30 |
| 11:00 | 23:30 |
| 12:00 | 00:30 |
| 13:00 | 01:30 |
| 14:00 | 02:30 |
| 15:00 | 03:30 |
| 16:00 | 04:30 |
| 17:00 | 05:30 |
| 18:00 | 06:30 |
| 19:00 | 07:30 |
| 20:00 | 08:30 |
| 21:00 | 09:30 |
| 22:00 | 10:30 |
| 23:00 | 11:30 |
India Standard Time
Offset: IST is 5 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Asia
Countries using this time zone: India
Principal Cities: The largest city in the IST time zone is Mumbai in India, with about 12.692 million people. Other major cities in this time zone include Delhi, Bangalore, Chennai, Kolkata.
Daylight Saving: Clocks in India Standard Time (IST) do not change for daylight saving time, so IST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
IST representations, usage and related time zones
- +0530 - basic
- +05:30 - extended
- +0530 - sign character (+) followed by a four digit time providing hours (05) and minutes (30) of the offset. Indicates an offset of five hours and thirty minutes to the east of the zero meridian.
- Asia/Calcutta
- Asia/Kolkata
- India Standard Time - UTC +5:30
- Irish Standard Time - UTC +1
- Israel Standard Time - UTC +2
Mountain Daylight Time
Offset: MDT is 6 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries using this time zone: Canada, Mexico, United States
Principal Cities: The largest city in the MDT time zone is Calgary in Canada, with about 1.307 million people. Other major cities in this time zone include Edmonton, Denver, El Paso, Albuquerque.
French: HAR - Heure Avancée des Rocheuses
Spanish: MT - Zona Pacífico
Daylight Saving: Mountain Daylight Time (MDT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Mountain Standard Time (MST).
Start: Mountain Daylight Time (MDT) started on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00. Daylight saving starts annually on the second Sunday of March.
End: Mountain Daylight Time (MDT) ends on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, November 1, 2026, 1:00 am01:00 local standard time instead. Daylight saving ends annually on the first Sunday of November.
MDT representations, usage and related time zones
- -06 - basic short
- -0600 - basic
- -06:00 - extended
- -0600 - sign character (-) followed by a four digit time providing hours (06) and minutes (00) of the offset. Indicates an offset of six hours to the west of the zero meridian.
- Sierra - Military abbreviation for MDT
- S - short form of 'Sierra'
- America/Boise
- America/Cambridge_Bay
- America/Ciudad_Juarez
- America/Denver
- America/Edmonton
- America/Inuvik
- America/Shiprock
- America/Yellowknife
- Canada/Mountain
- MST7MDT
- Navajo
- US/Mountain
- CST - Central Standard Time
- CT - Central Time
- MDT - Mountain Daylight Time
- EAST - Easter Island Standard Time
- GALT - Galapagos Time
- S - Sierra Time Zone