Chile · CLT
Mon, 14 Sept 2026
Timezone Guide
Antofagasta, Chile runs on UTC−3. Clocks move forward each spring and back each autumn: UTC−4 in winter, UTC−3 in summer. Next change: 5 Apr. There is a 1-hour difference between Antofagasta and New York. Standard 9-to-6 working hours overlap for about 8 hours a day with New York. A good time to connect: 10:00–18:00 in Antofagasta lines up with 09:00–17:00 in New York. There is a 4-hour difference between Antofagasta and London. Standard 9-to-6 working hours overlap for about 5 hours a day with London. A good time to connect: 09:00–14:00 in Antofagasta lines up with 13:00–18:00 in London. There is a 12-hour difference between Antofagasta and Tokyo. Standard working hours don't overlap at all with Tokyo, so meetings need an early or late slot on one side. This timezone is also shared with cities such as Buenos Aires, São Paulo, Santiago. Keeping these offsets in mind makes it easier to schedule calls or travel to and from Antofagasta.
Practical Info
Antofagasta (Chile) is home to roughly 390K people. Today brings about 10.7 hours of daylight: sunrise at 07:24, sunset at 18:06. Clocks move forward each spring and back each autumn: UTC−4 in winter, UTC−3 in summer. Next change: 5 Apr. It sits in the Southern Hemisphere, about 24° south of the equator. Traffic drives on the right.
Flag
Chile
Capital
Santiago
Continent
South America
Time Zone
CLT · America/Santiago
Coordinates
23.65°S, 70.40°W
Currency
CLP ($)
Calling Code
+56
Driving Side
Right
Hemisphere
Southern
Language
Spanish
Measurement System
Metric
Did You Know?
Parts of the Atacama around Antofagasta have recorded no measurable rainfall in the entire instrumental record, and some sediment studies suggest hyperarid conditions for millions of years. NASA tests Mars instruments here.
The clock: Antofagasta keeps Chilean time. The region produces a large share of the world's copper.
Annual Daylight
Working Hours
3h overlap