What is the time difference between Bengaluru and Seoul?

Seoul is 3 hours 30 minutes ahead of Bengaluru. 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 Seoul from Bengaluru?

Between 09:00–14:30 in Bengaluru, which is 12:30–18:00 in Seoul. That is the only stretch where both cities are inside a 09:00–18:00 day.

Does Bengaluru observe daylight saving time?

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

Does Seoul observe daylight saving time?

No. Seoul stays on UTC+9 all year, so its clocks never move.

If it is midday in Bengaluru, what time is it in Seoul?

It is 15:30 in Seoul, on the same calendar date. That holds for the current offsets; it does not change through the year, because neither city moves its clocks.

Which time zones do Bengaluru and Seoul use?

Bengaluru uses Asia/Kolkata, currently UTC+5:30 (IST), and Seoul uses Asia/Seoul, currently UTC+9. Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert Bengaluru time to Seoul time

Seoul is 3 hours 30 minutes ahead of Bengaluru right now, so midday in Bengaluru lands in the afternoon in Seoul.

Convert a time

From

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 Bengaluru, across for Seoul.

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

Daylight saving time

Neither Bengaluru nor Seoul changes its clocks, so the difference between them is the same every day of the year.

Bengaluru

Does not observe daylight saving time

Standard: UTC+5:30

Seoul

Does not observe daylight saving time

Standard: UTC+9

When you can actually talk

You have 5 hours 30 minutes of shared working time: 09:00–14:30 in Bengaluru, which is 12:30–18:00 in Seoul.

Bengaluru 09:00–14:30Seoul 12:30–18:00

Reference

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

	Bengaluru	Seoul
IANA zone	Asia/Kolkata	Asia/Seoul
Abbreviation	IST	UTC+9
Standard offset	UTC+5:30	UTC+9
Daylight offset	—	—
Clock changes this year	0	0
Country	India	South Korea

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

Common questions

What is the time difference between Bengaluru and Seoul?: Seoul is 3 hours 30 minutes ahead of Bengaluru. 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 Seoul from Bengaluru?: Between 09:00–14:30 in Bengaluru, which is 12:30–18:00 in Seoul. That is the only stretch where both cities are inside a 09:00–18:00 day.
Does Bengaluru observe daylight saving time?: No. Bengaluru stays on UTC+5:30 all year, so its clocks never move.
Does Seoul observe daylight saving time?: No. Seoul stays on UTC+9 all year, so its clocks never move.
If it is midday in Bengaluru, what time is it in Seoul?: It is 15:30 in Seoul, on the same calendar date. That holds for the current offsets; it does not change through the year, because neither city moves its clocks.
Which time zones do Bengaluru and Seoul use?: Bengaluru uses Asia/Kolkata, currently UTC+5:30 (IST), and Seoul uses Asia/Seoul, currently UTC+9. Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.