What is the time difference between Chicago and Moscow?

Moscow is 8 hours ahead of Chicago. 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 Moscow from Chicago?

Between 09:00–10:00 in Chicago, which is 17:00–18:00 in Moscow. That is the only stretch where both cities are inside a 09:00–18:00 day.

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.

Does Moscow observe daylight saving time?

No. Moscow stays on UTC+3 all year, so its clocks never move.

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

It is 20:00 in Moscow, 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 Chicago and Moscow use?

Chicago uses America/Chicago, currently UTC-5 (CDT), and Moscow uses Europe/Moscow, currently UTC+3. Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert Chicago time to Moscow time

Moscow is 8 hours ahead of Chicago right now, so midday in Chicago lands in the evening in Moscow.

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

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

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

Daylight saving time

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

Chicago

Observes daylight saving time

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

Moscow

Does not observe daylight saving time

Standard: UTC+3

When you can actually talk

The window is 1 hour wide — 09:00–10:00 in Chicago, 17:00–18:00 in Moscow.

Chicago 09:00–10:00Moscow 17:00–18:00

Reference

The zone identifiers and offsets behind everything above.

	Chicago	Moscow
IANA zone	America/Chicago	Europe/Moscow
Abbreviation	CDT	UTC+3
Standard offset	UTC-6	UTC+3
Daylight offset	UTC-5	—
Clock changes this year	2	0
Country	United States	Russia

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

Common questions

What is the time difference between Chicago and Moscow?: Moscow is 8 hours ahead of Chicago. 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 Moscow from Chicago?: Between 09:00–10:00 in Chicago, which is 17:00–18:00 in Moscow. That is the only stretch where both cities are inside a 09:00–18:00 day.
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.
Does Moscow observe daylight saving time?: No. Moscow stays on UTC+3 all year, so its clocks never move.
If it is midday in Chicago, what time is it in Moscow?: It is 20:00 in Moscow, 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 Chicago and Moscow use?: Chicago uses America/Chicago, currently UTC-5 (CDT), and Moscow uses Europe/Moscow, currently UTC+3. Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.