Chicago to London Time Converter

Key facts

• Chicago is on CDT (UTC-5) until 1 November 2026, observing daylight saving time.
• London is on GMT (UTC+0) until 28 March 2027, on standard time.
• Time difference: 5 hours (London is ahead of Chicago) until 1 November 2026.
• Range over the next 12 months: 5–6 hours.

How do I convert Chicago time to London time?

When it is 9:00 AM in Chicago, it is 2:00 PM the same day in London. The table below converts every hour of the day.

What is the best time to call London from Chicago?

The best time to call is 9:00 AM to 12:00 PM in Chicago, which is 2:00 PM to 5:00 PM in London. Both cities are inside 9:00 AM to 5:00 PM then. This applies on 31 October 2026.

Does the Chicago to London time difference change with daylight saving time?

Yes. Over the next 12 months the Chicago to London gap is 5–6 hours, because both cities change their clocks, on different dates.

Chicago changes its clocks on 1 November 2026 (back 1 hour) and 14 March 2027 (forward 1 hour).

London changes its clocks on 28 March 2027 (forward 1 hour) and 31 October 2027 (back 1 hour).

Over the next 12 months the difference is 5–6 hours:

• 31 October 2026 until 1 November 2026: London is 5 hours ahead of Chicago.
• 1 November 2026 until 14 March 2027: London is 6 hours ahead of Chicago.
• 14 March 2027 until 28 March 2027: London is 5 hours ahead of Chicago.
• 28 March 2027 until 31 October 2027: London is 6 hours ahead of Chicago.

What are common Chicago to London times?

9:00 AM in Chicago is 2:00 PM in London. 5:00 PM in Chicago is 10:00 PM in London. The tables below list nine everyday times from 6:00 AM to 10:00 PM in both directions.

What are common London to Chicago times?

These times apply on 31 October 2026. The gap changes with daylight saving time.

Which time zones do Chicago and London use?

Chicago, United States of America, uses the America/Chicago time zone, CDT (UTC-5) until 1 November 2026. London, United Kingdom, uses the Europe/London time zone, GMT (UTC+0) until 28 March 2027.

Both are named IANA time zones, so Chicago and London follow their own daylight saving rules for the date you choose instead of a fixed offset. That is why the gap between them can change by an hour at different times of the year.

People often search for US Central time to UK time. On this page US Central time means Chicago time and UK time means London time. The United States spans several time zones and Chicago is on Central time.

Frequently Asked Questions

What is the time difference between Chicago and London?

London is 5 hours ahead of Chicago until 1 November 2026. Across the next 12 months the gap is 5–6 hours because of daylight saving time.

Is London ahead of Chicago?

Yes. London is 5 hours ahead of Chicago until 1 November 2026, so it is already later in London. Put the other way, Chicago is 5 hours behind London.

What is 8 PM London time in Chicago?

8:00 PM in London is 3:00 PM in Chicago. This applies on 31 October 2026. The gap changes with daylight saving time, so check the date you need in the converter.

What time is it in London when it is 9 AM in Chicago?

When it is 9:00 AM in Chicago, it is 2:00 PM the same day in London. This applies on 31 October 2026. The gap changes with daylight saving time, so check the date you need in the converter.

What is the best time to call London from Chicago?

The best time to call is 9:00 AM to 12:00 PM in Chicago, which is 2:00 PM to 5:00 PM in London. Both cities are inside 9:00 AM to 5:00 PM then. This applies on 31 October 2026.

What is the time difference between US Central time and UK time?

London is 5 hours ahead of Chicago until 1 November 2026. Here US Central time means Chicago time and UK time means London time.

Does the Chicago–London time difference change with daylight saving time?

Yes. Across the next 12 months the gap is 5–6 hours because of daylight saving time. From 1 November 2026 the difference becomes 6 hours, when Chicago ends daylight saving time. From 14 March 2027 the difference becomes 5 hours, when Chicago starts daylight saving time. From 28 March 2027 the difference becomes 6 hours, when London starts daylight saving time.

Can I convert a future date between Chicago and London?

Yes. Pick any date in the converter above and it applies the offsets Chicago and London will use on that day, including daylight saving time changes.

Related time zone conversions

• London to Chicago time
• London to New York time
• London to Sydney time
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• London to Dubai time
• London to Mumbai time
• London to Paris time
• London to Berlin time
• London to Toronto time
• London to Singapore time
• London to Los Angeles time
• London to Tokyo time
• Current time in Chicago
• Current time in London
• Time zone converter
• World clock

Offsets checked against IANA time zone data on 31 October 2026.

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