What is the time difference between Delhi and Chicago?

Chicago is 10 hours 30 minutes behind Delhi. 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 Delhi?

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 Delhi observe daylight saving time?

No. Delhi 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 Delhi, 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 Delhi and Chicago use?

Delhi 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 Delhi time to Chicago time

Right now Chicago runs 10 hours 30 minutes behind Delhi. That gap is not fixed: it moves when either city changes its clocks.

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 Delhi, across for Chicago.

Delhi	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

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

Delhi

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 Delhi and one in Chicago do not overlap at all. Any call between them is early for one side or late for the other.

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

Reference

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

	Delhi	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 Delhi and Chicago?: Chicago is 10 hours 30 minutes behind Delhi. 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 Delhi?: 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 Delhi observe daylight saving time?: No. Delhi 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 Delhi, 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 Delhi and Chicago use?: Delhi 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.