Thatcham to Chicago time converter

Chicago is 6 hours behind Thatcham. When it is 9:00 AM in Thatcham, it is 3:00 AM in Chicago.

Thatcham BST

Sunday, October 18, 2026

Chicago CDT

Saturday, October 17, 2026

Thatcham
United Kingdom
Sun, Oct 18
BSTUTC+1
Chicago
Illinois, United States
Sat, Oct 17
CDTUTC-5-6h
Finding your time zone…
Shared working hours (9:00–18:00)

Thatcham to Chicago conversion table

Every hour of today in Thatcham and the matching time in Chicago. Light rows are typical working hours (9:00–18:00).

ThatchamChicago
12:00 AM6:00 PM−1 day
1:00 AM7:00 PM−1 day
2:00 AM8:00 PM−1 day
3:00 AM9:00 PM−1 day
4:00 AM10:00 PM−1 day
5:00 AM11:00 PM−1 day
6:00 AM12:00 AM
7:00 AM1:00 AM
8:00 AM2:00 AM
9:00 AM3:00 AM
10:00 AM4:00 AM
11:00 AM5:00 AM
12:00 PM6:00 AM
1:00 PM7:00 AM
2:00 PM8:00 AM
3:00 PM9:00 AM
4:00 PM10:00 AM
5:00 PM11:00 AM
6:00 PM12:00 PM
7:00 PM1:00 PM
8:00 PM2:00 PM
9:00 PM3:00 PM
10:00 PM4:00 PM
11:00 PM5:00 PM

Best time to call or meet

Both sides are at work from 3:00 PM – 6:00 PM in Thatcham (9:00 AM – 12:00 PM in Chicago).

Daylight saving time and the difference

The difference changes during the year because Thatcham and Chicago switch clocks on different dates:

  • Oct 18, 2026 – Oct 25, 2026: -6h
  • Oct 25, 2026 – Nov 1, 2026: -5h
  • Nov 1, 2026 – Mar 14, 2027: -6h
  • Mar 14, 2027 – Mar 28, 2027: -5h
  • Mar 28, 2027 – Oct 18, 2027: -6h

Distance

Thatcham and Chicago are 6,292 km (3,910 miles) apart in a straight line.

More conversions

Chicago to ThatchamThatcham to New YorkThatcham to LondonThatcham to Los AngelesThatcham to TorontoThatcham to São PauloThatcham to ParisThatcham to BerlinThatcham to MoscowThatcham to DubaiThatcham to New DelhiThatcham to BangkokThatcham to Singapore
New York to ChicagoLondon to ChicagoLos Angeles to ChicagoToronto to ChicagoSão Paulo to ChicagoParis to ChicagoBerlin to ChicagoMoscow to ChicagoDubai to ChicagoNew Delhi to ChicagoBangkok to ChicagoSingapore to Chicago

Questions and answers

What is the time difference between Thatcham and Chicago?

Chicago is 6 hours behind Thatcham.

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

When it is 9:00 AM in Thatcham, it is 3:00 AM in Chicago.

When is the best time to call Chicago from Thatcham?

Both sides are at work from 3:00 PM – 6:00 PM in Thatcham (9:00 AM – 12:00 PM in Chicago).

Does the time difference between Thatcham and Chicago change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.