What is the time difference between Bengaluru and Chicago?

Chicago is 10 hours 30 minutes behind 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 Chicago from Bengaluru?

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 Bengaluru observe daylight saving time?

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

Does Chicago observe daylight saving time?

Yes. Chicago runs on UTC-6 in winter and UTC-5 in summer. The next change is on 2026-11-01, when clocks go back by 60 minutes.

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

It is 01:30 in Chicago, 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 Bengaluru and Chicago use?

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

Convert Bengaluru time to Chicago time

Chicago is 10 hours 30 minutes behind Bengaluru right now, so midday in Bengaluru lands in the small hours in Chicago.

Convert a 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

Every hour of a day in Bengaluru, and what the clock reads in Chicago at that same moment.

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

Daylight saving time

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

Bengaluru

Does not observe daylight saving time

Standard: UTC+5:30

Chicago

Observes daylight saving time

Standard: UTC-6
Daylight: UTC-5
Next change: 2026-11-01 −60m

When you can actually talk

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

Bengaluru 09:00–18:00Chicago 22:30–07:30
Bengaluru 19:30–04:30Chicago 09:00–18:00

Reference

The zone identifiers and offsets behind everything above.

	Bengaluru	Chicago
IANA zone	Asia/Kolkata	America/Chicago
Abbreviation	IST	CDT
Standard offset	UTC+5:30	UTC-6
Daylight offset	—	UTC-5
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 Bengaluru and Chicago?: Chicago is 10 hours 30 minutes behind 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 Chicago from Bengaluru?: 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 Bengaluru observe daylight saving time?: No. Bengaluru stays on UTC+5:30 all year, so its clocks never move.
Does Chicago observe daylight saving time?: Yes. Chicago runs on UTC-6 in winter and UTC-5 in summer. The next change is on 2026-11-01, when clocks go back by 60 minutes.
If it is midday in Bengaluru, what time is it in Chicago?: It is 01:30 in Chicago, 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 Bengaluru and Chicago use?: Bengaluru uses Asia/Kolkata, currently UTC+5:30 (IST), and Chicago uses America/Chicago, currently UTC-5 (CDT). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.