Mountain Daylight Time (mdt) is used in USA. The IANA timezone identifier is America/Denver.

India Standard Time (ist) is used in India. The IANA timezone identifier is Asia/Kolkata.

MDT to IST Time Converter

Mountain Daylight Time → India Standard Time

MDT = UTC-6IST = UTC+5:30

⚠️ IST is ambiguous — on this page it means India Standard Time. It also refers to:

MDT → Ireland Standard Time (Dublin) ↗MDT → Israel Standard Time (Jerusalem) ↗

ClockinSync

BASE

09:00

Work Clients Team +

00:0006:0012:0018:0024:00

IST (Mumbai)

India · +11.5h

20:30

London

United Kingdom · +7h

16:00

New York

USA · +2h

11:00

Tokyo

Japan · +15h

00:00+1 day

Dubai

United Arab Emirates · +10h

19:00

MDT (Denver) ↔ IST (Mumbai) — time offset

MDT (Denver) is 12 hours 30 minutes behind IST (Mumbai). When it's noon in MDT (Denver), it's 23:00 in IST (Mumbai).

MDT (Denver) observes America/Denver and IST (Mumbai) observes Asia/Kolkata — a 11.5 hours 30 minutes gap between them.

Mutual working hours

When MDT (Denver) is in standard working hours, IST (Mumbai) is not — and vice versa. There is no mutual business window between these two locations.

Meeting time recommendations

No business hours overlap exists between MDT (Denver) and IST (Mumbai). Showing the most balanced options with minimal inconvenience for both locations.

05:00 Denver / 16:00 Mumbai⚡ One side off-hours

⚠️ 4h before working hours in Denver

09:00 Denver / 20:00 Mumbai⚡ One side off-hours

⚠️ 4h after working hours in Mumbai

04:00 Denver / 15:00 Mumbai⚡ One side off-hours

⚠️ 5h before working hours in Denver

Assumes a standard 9 AM–5 PM workday in each location's local timezone.

Public holidays this year

MDT (Denver)8 holidays

Jun 19Juneteenth National Independence DaySOON

Jul 3Independence Day

Sep 7Labour Day

Oct 12Columbus Day

Oct 12Indigenous Peoples' Day

IST (Mumbai)

No upcoming public holidays this year.

MDT (Denver) and IST (Mumbai) — practical scheduling

MDT (Denver) (USA) and IST (Mumbai) (India) are 11.5 hours apart — far enough that standard 9–5 schedules do not overlap. Any real-time meeting means someone is joining outside their normal hours.

💡 Practical scheduling guidelines

⚡

05:00–06:00 in MDT (Denver) corresponds to 16:00–17:00 in IST (Mumbai) (4h before working hours in Denver).

⚡

09:00–10:00 in MDT (Denver) corresponds to 20:00–21:00 in IST (Mumbai) (4h after working hours in Mumbai).

⚡

04:00–05:00 in MDT (Denver) corresponds to 15:00–16:00 in IST (Mumbai) (5h before working hours in Denver).

With no shared business hours, these slots distribute the scheduling burden as evenly as possible between both locations.

Recurring meetings are particularly vulnerable to DST shifts. The ClockinSync Chrome Extension alerts you before the offset changes.

Install ClockinSync Free →

Drag the slider at the top to convert any MDT (Denver) time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.

MDT (Denver) ↔ IST (Mumbai)

No overlap — one side will join outside working hours

MDT (Denver)

IST (Mumbai)