What is the time difference between Mumbai and Denver?

Denver is 11 hours 30 minutes behind Mumbai. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.

When is the best time to call Denver from Mumbai?

There is no time inside normal working hours in both cities, so someone has to take the call outside them. The nearest workable windows are listed above — pick one and alternate who gets the awkward slot.

Does Mumbai observe daylight saving time?

No. Mumbai stays on UTC+5:30 all year, so its clocks never move.

Does Denver observe daylight saving time?

Yes. Denver runs on UTC-7 in winter and UTC-6 in summer. The next change is on 2026-11-01, when clocks go back by 60 minutes.

If it is midday in Mumbai, what time is it in Denver?

It is 00:30 in Denver, on the same calendar date. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.

Which time zones do Mumbai and Denver use?

Mumbai uses Asia/Kolkata, currently UTC+5:30 (IST), and Denver uses America/Denver, currently UTC-6 (MDT). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert Mumbai time to Denver time

Denver is 11 hours 30 minutes behind Mumbai right now, so midday in Mumbai lands in the small hours in Denver.

Convert a time

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Date

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Converted time

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The converter needs JavaScript to run. Everything below — offsets, daylight saving dates and the hour-by-hour table — is part of the page and works without it.

Hour by hour

The whole day mapped across: read down the left for Mumbai, across for Denver.

Mumbai	Denver
00:00	12:30previous day
01:00	13:30previous day
02:00	14:30previous day
03:00	15:30previous day
04:00	16:30previous day
05:00	17:30previous day
06:00	18:30previous day
07:00	19:30previous day
08:00	20:30previous day
09:00	21:30previous day
10:00	22:30previous day
11:00	23:30previous day
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

Daylight saving time

Mumbai keeps one offset all year while Denver moves twice. That is the whole reason this difference is seasonal.

Mumbai

Does not observe daylight saving time

Standard: UTC+5:30

Denver

Observes daylight saving time

Standard: UTC-7
Daylight: UTC-6
Next change: 2026-11-01 −60m

When you can actually talk

A standard working day in Mumbai and one in Denver do not overlap at all. Any call between them is early for one side or late for the other.

Mumbai 09:00–18:00Denver 21:30–06:30
Mumbai 20:30–05:30Denver 09:00–18:00

Reference

The zone identifiers and offsets behind everything above.

	Mumbai	Denver
IANA zone	Asia/Kolkata	America/Denver
Abbreviation	IST	MDT
Standard offset	UTC+5:30	UTC-7
Daylight offset	—	UTC-6
Clock changes this year	0	2
Country	India	United States

Example, not the current time. Live times appear once the page loads.

Common questions

What is the time difference between Mumbai and Denver?: Denver is 11 hours 30 minutes behind Mumbai. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.
When is the best time to call Denver from Mumbai?: There is no time inside normal working hours in both cities, so someone has to take the call outside them. The nearest workable windows are listed above — pick one and alternate who gets the awkward slot.
Does Mumbai observe daylight saving time?: No. Mumbai stays on UTC+5:30 all year, so its clocks never move.
Does Denver observe daylight saving time?: Yes. Denver runs on UTC-7 in winter and UTC-6 in summer. The next change is on 2026-11-01, when clocks go back by 60 minutes.
If it is midday in Mumbai, what time is it in Denver?: It is 00:30 in Denver, on the same calendar date. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.
Which time zones do Mumbai and Denver use?: Mumbai uses Asia/Kolkata, currently UTC+5:30 (IST), and Denver uses America/Denver, currently UTC-6 (MDT). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.