| CITY | LOCAL TIME | Difference | Coming up |
|---|---|---|---|
| London United Kingdom | 01:00Thu | +4h | Becomes +3h on 25 Oct |
| Berlin Germany | 02:00Thu | +5h | Becomes +4h on 25 Oct |
| Dubai UAE | 04:00Thu | +7h | |
| Tokyo Japan | 09:00Thu | +12h | |
| Sydney Australia | 10:00Thu | +13h | Becomes +14h on 4 Oct |
| New York United States | 20:00 | −1h | Becomes −2h on 1 Nov |
| Los Angeles United States | 17:00 | −4h | Becomes −5h on 1 Nov |
La Serena, Chile runs on UTC−3. Clocks move forward each spring and back each autumn: UTC−4 in winter, UTC−3 in summer. Next change: 3 Apr. The time difference between La Serena and New York is 1 hour. 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 La Serena lines up with 09:00–17:00 in New York. The time difference between La Serena and London is 4 hours. 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 La Serena lines up with 13:00–18:00 in London. The time difference between La Serena and Tokyo is 12 hours. 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 Santiago, Valparaíso, Concepción. Keeping these offsets in mind makes it easier to schedule calls or travel to and from La Serena.
La Serena (Chile) is home to roughly 230K people. Today brings about 12.3 hours of daylight: sunrise at 07:24, sunset at 19:45. Clocks move forward each spring and back each autumn: UTC−4 in winter, UTC−3 in summer. Next change: 3 Apr. It sits in the Southern Hemisphere, about 30° south of the equator. Traffic drives on the right.
Flag
Chile
Capital
Santiago
Continent
South America
Time Zone
UTC−3 · America/Santiago
Coordinates
29.90°S, 71.25°W
Currency
CLP ($)
Calling Code
+56
Driving Side
Right
Hemisphere
Southern
Language
Spanish
Measurement System
Metric
Did You Know?
The mountains inland from La Serena hold several of the world's major observatories, because the combination of altitude, dry air and over 300 clear nights a year is close to unmatched. Northern Chile hosts a large share of global optical telescope capacity.
The clock: La Serena keeps Chilean time. The Vera Rubin Observatory nearby, which began operating in 2025, images the entire southern sky every few nights.
La Serena lies at 71.3°W. Its time zone, UTC−4, is built around the 60°W meridian. The 11.3° gap between them means the clock runs roughly 45 minutes ahead of the sun: solar noon arrives at about 12:45 rather than 12:00. Under daylight saving the clocks move 60 minutes forward, widening the gap to 105 minutes and pushing solar noon to 13:45.
The longest day of 2026 is 22 December, with 14h 4m of daylight. The shortest is 22 June, with 10h 13m. The swing between them is 3h 51m. At this latitude the seasons are visible in the clock, but never dramatic.
The earliest sunrise and the latest sunset do not land on the longest day. In La Serena the sun comes up earliest on 4 December at 06:37, while the latest sunset waits until 10 January at 20:50. The equation of time is what separates them: the Earth's elliptical orbit and axial tilt move solar noon back and forth by several minutes over the year.
The sky stays usably light for a while after the sun goes down. In La Serena that civil twilight runs about 24 minutes at the equinox.
Every figure in this section is computed from the city's own latitude, longitude and IANA time zone using NOAA solar algorithms (Spencer, 1971), accurate to about ±2 arcminutes below 65° latitude.
The official timezone for La Serena, Chile is America/Santiago with a current UTC offset of UTC−3.
La Serena has an estimated population of 230K and is located at coordinates 29.90°S, 71.25°W.
La Serena gets 14h 4m of daylight on its longest day and 10h 13m on its shortest, averaging 12h 6m a day across the year.
Solar noon in La Serena falls at about 12:45 on UTC−4 standard time, because the city sits 11.3° from the meridian its zone is built on.
The Clearest Skies on Earth: The mountains inland from La Serena hold several of the world's major observatories, because the combination of altitude, dry air and over 300 clear nights a year is close to unmatched.