Chicago to Costa Rica time converter

Costa Rica is 1 hour ahead of Chicago. When it is 9:00 AM in Chicago, it is 10:00 AM in Costa Rica.

Chicago CDT

Wednesday, October 21, 2026

Costa Rica AMT

Wednesday, October 21, 2026

Illinois, United States
Wed, Oct 21
CDTUTC-5
Mato Grosso do Sul, Brazil
Wed, Oct 21
AMTUTC-4+1h
Finding your time zone…

9:32 PM in Chicago, Wednesday, October 21, 2026

Shared working hours (9:00–18:00)

Chicago to Costa Rica conversion table

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

ChicagoCosta Rica
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 Costa Rica).

Daylight saving time and the difference

The difference changes during the year because Chicago and Costa Rica 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

Distance

Chicago and Costa Rica are 7,595 km (4,719 miles) apart in a straight line.

More conversions

Questions and answers

What is the time difference between Chicago and Costa Rica?

Costa Rica is 1 hour ahead of Chicago.

What time is it in Costa Rica when it is 9 AM in Chicago?

When it is 9:00 AM in Chicago, it is 10:00 AM in Costa Rica.

When is the best time to call Costa Rica from Chicago?

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

Does the time difference between Chicago and Costa Rica change?

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