Time difference
Time difference between Antofagasta and Chicago
When the time difference changes (2026–2027)
- January 1, 2026 – March 8, 2026: −3 h
-
March 8, 2026 – April 4, 2026: −2 h
Chicago: clocks go forward 1 h (3:00 AM, UTC-5) -
April 4, 2026 – September 5, 2026: −1 h
Antofagasta: clocks go back 1 h (11:00 PM, UTC-4) -
September 6, 2026 – November 1, 2026: −2 h
Antofagasta: clocks go forward 1 h (1:00 AM, UTC-3) -
November 1, 2026 – March 14, 2027: −3 h now
Chicago: clocks go back 1 h (1:00 AM, UTC-6) -
March 14, 2027 – April 3, 2027: −2 h
Chicago: clocks go forward 1 h (3:00 AM, UTC-5) -
April 3, 2027 – September 4, 2027: −1 h
Antofagasta: clocks go back 1 h (11:00 PM, UTC-4) -
September 5, 2027 – November 7, 2027: −2 h
Antofagasta: clocks go forward 1 h (1:00 AM, UTC-3) -
November 7, 2027 – December 31, 2027: −3 h
Chicago: clocks go back 1 h (1:00 AM, UTC-6)
The difference changes because the cities switch their clocks on different dates, or only one of them does.
Overlapping working hours
9 am–5 pm overlaps from 12:00 PM to 5:00 PM in Antofagasta, i.e. 9:00 AM to 2:00 PM in Chicago.
Convert hours: Antofagasta → Chicago
| Antofagasta | Chicago |
|---|---|
| 12:00 AM | 9:00 PM previous day |
| 1:00 AM | 10:00 PM previous day |
| 2:00 AM | 11:00 PM previous day |
| 3:00 AM | 12:00 AM |
| 4:00 AM | 1:00 AM |
| 5:00 AM | 2:00 AM |
| 6:00 AM | 3:00 AM |
| 7:00 AM | 4:00 AM |
| 8:00 AM | 5:00 AM |
| 9:00 AM | 6:00 AM |
| 10:00 AM | 7:00 AM |
| 11:00 AM | 8:00 AM |
| 12:00 PM | 9:00 AM |
| 1:00 PM | 10:00 AM |
| 2:00 PM | 11:00 AM |
| 3:00 PM | 12:00 PM |
| 4:00 PM | 1:00 PM |
| 5:00 PM | 2:00 PM |
| 6:00 PM | 3:00 PM |
| 7:00 PM | 4:00 PM |
| 8:00 PM | 5:00 PM |
| 9:00 PM | 6:00 PM |
| 10:00 PM | 7:00 PM |
| 11:00 PM | 8:00 PM |
Table for today’s date. Green rows – working hours (9–17) in both cities, dark – night in the second city. “Next day” / “previous day” – an hour on a different day than in Antofagasta.