Chicago to Altamira time converter

Altamira is 1 hour behind Chicago. When it is 9:00 AM in Chicago, it is 8:00 AM in Altamira.

Chicago CDT

Wednesday, October 21, 2026

Altamira CST

Wednesday, October 21, 2026

Chicago
Illinois, United States
Wed, Oct 21
CDTUTC-5
Altamira
Tamaulipas, Mexico
Wed, Oct 21
CSTUTC-6-1h
Finding your time zone…
Shared working hours (9:00–18:00)

Chicago to Altamira conversion table

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

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

Best time to call or meet

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

Daylight saving time and the difference

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

  • Oct 21, 2026 – Nov 1, 2026: -1h
  • Nov 1, 2026 – Mar 14, 2027: ±0
  • Mar 14, 2027 – Oct 21, 2027: -1h

Distance

Chicago and Altamira are 2,366 km (1,470 miles) apart in a straight line.

More conversions

Altamira to ChicagoChicago to New YorkChicago to LondonChicago to Los AngelesChicago to TorontoChicago to São PauloChicago to ParisChicago to BerlinChicago to MoscowChicago to DubaiChicago to New DelhiChicago to BangkokChicago to Singapore
New York to AltamiraLondon to AltamiraLos Angeles to AltamiraToronto to AltamiraSão Paulo to AltamiraParis to AltamiraBerlin to AltamiraMoscow to AltamiraDubai to AltamiraNew Delhi to AltamiraBangkok to AltamiraSingapore to Altamira

Questions and answers

What is the time difference between Chicago and Altamira?

Altamira is 1 hour behind Chicago.

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

When it is 9:00 AM in Chicago, it is 8:00 AM in Altamira.

When is the best time to call Altamira from Chicago?

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

Does the time difference between Chicago and Altamira change?

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