What is the time difference between Dublin and Mumbai?

Mumbai is 4 hours 30 minutes ahead of Dublin. 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 Mumbai from Dublin?

Between 09:00–13:30 in Dublin, which is 13:30–18:00 in Mumbai. That is the only stretch where both cities are inside a 09:00–18:00 day.

Does Dublin observe daylight saving time?

Yes. Dublin runs on UTC+0 in winter and UTC+1 in summer. The next change is on 2026-10-25, when clocks go back by 60 minutes.

Does Mumbai observe daylight saving time?

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

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

It is 16:30 in Mumbai, 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 Dublin and Mumbai use?

Dublin uses Europe/Dublin, currently UTC+1 (IST), and Mumbai uses Asia/Kolkata, currently UTC+5:30 (IST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert Dublin time to Mumbai time

Mumbai is 4 hours 30 minutes ahead of Dublin right now, so midday in Dublin lands in the afternoon in Mumbai.

Convert a time

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Date

Time

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 Dublin, across for Mumbai.

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

Daylight saving time

Dublin changes its clocks; Mumbai does not. The difference between them therefore shifts by an hour twice a year.

Dublin

Observes daylight saving time

Standard: UTC+0
Daylight: UTC+1
Next change: 2026-10-25 −60m

Mumbai

Does not observe daylight saving time

Standard: UTC+5:30

When you can actually talk

The window is 4 hours 30 minutes wide — 09:00–13:30 in Dublin, 13:30–18:00 in Mumbai.

Dublin 09:00–13:30Mumbai 13:30–18:00

Reference

The underlying data, in case you need to put it in a calendar invitation or a configuration file.

	Dublin	Mumbai
IANA zone	Europe/Dublin	Asia/Kolkata
Abbreviation	IST	IST
Standard offset	UTC+0	UTC+5:30
Daylight offset	UTC+1	—
Clock changes this year	2	0
Country	Ireland	India

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

Common questions

What is the time difference between Dublin and Mumbai?: Mumbai is 4 hours 30 minutes ahead of Dublin. 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 Mumbai from Dublin?: Between 09:00–13:30 in Dublin, which is 13:30–18:00 in Mumbai. That is the only stretch where both cities are inside a 09:00–18:00 day.
Does Dublin observe daylight saving time?: Yes. Dublin runs on UTC+0 in winter and UTC+1 in summer. The next change is on 2026-10-25, when clocks go back by 60 minutes.
Does Mumbai observe daylight saving time?: No. Mumbai stays on UTC+5:30 all year, so its clocks never move.
If it is midday in Dublin, what time is it in Mumbai?: It is 16:30 in Mumbai, 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 Dublin and Mumbai use?: Dublin uses Europe/Dublin, currently UTC+1 (IST), and Mumbai uses Asia/Kolkata, currently UTC+5:30 (IST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.