Chicago to Antigua and Barbuda time converter

Antigua and Barbuda is 1 hour ahead of Chicago. When it is 9:00 AM in Chicago, it is 10:00 AM in Antigua and Barbuda.

Chicago CDT

Wednesday, October 21, 2026

Antigua and Barbuda AST

Wednesday, October 21, 2026

Illinois, United States
Wed, Oct 21
CDTUTC-5
Wed, Oct 21
ASTUTC-4+1h
Finding your time zone…

12:04 AM in Chicago, Wednesday, October 21, 2026

Shared working hours (9:00–18:00)

Chicago to Antigua and Barbuda conversion table

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

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

Best time to call or meet

Both sides are at work from 9:00 AM – 5:00 PM in Chicago (10:00 AM – 6:00 PM in Antigua and Barbuda).

Daylight saving time and the difference

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

  • Oct 21, 2026 – Nov 1, 2026: +1h
  • Nov 1, 2026 – Mar 14, 2027: +2h
  • Mar 14, 2027 – Oct 21, 2027: +1h

More conversions

Questions and answers

What is the time difference between Chicago and Antigua and Barbuda?

Antigua and Barbuda is 1 hour ahead of Chicago.

What time is it in Antigua and Barbuda when it is 9 AM in Chicago?

When it is 9:00 AM in Chicago, it is 10:00 AM in Antigua and Barbuda.

When is the best time to call Antigua and Barbuda from Chicago?

Both sides are at work from 9:00 AM – 5:00 PM in Chicago (10:00 AM – 6:00 PM in Antigua and Barbuda).

Does the time difference between Chicago and Antigua and Barbuda change?

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