| 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 |
Ushuaia, Argentina runs on UTC−3. This time zone stays fixed year-round at UTC−3 — daylight saving time is not observed. The time difference between Ushuaia 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 Ushuaia lines up with 09:00–17:00 in New York. The time difference between Ushuaia 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 Ushuaia lines up with 13:00–18:00 in London. The time difference between Ushuaia 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 Buenos Aires, São Paulo, Rio de Janeiro. Keeping these offsets in mind makes it easier to schedule calls or travel to and from Ushuaia.
Ushuaia (Argentina) is home to roughly 80K people. Today brings about 12.7 hours of daylight: sunrise at 07:01, sunset at 19:45. This time zone stays fixed year-round at UTC−3 — daylight saving time is not observed. It sits in the Southern Hemisphere, about 55° south of the equator. Traffic drives on the right.
Flag
Argentina
Capital
Buenos Aires
Continent
South America
Time Zone
UTC−3 · America/Argentina/Ushuaia
Coordinates
54.80°S, 68.30°W
Currency
ARS ($)
Calling Code
+54
Driving Side
Right
Hemisphere
Southern
Language
Spanish
Measurement System
Metric
Did You Know?
Ushuaia sits at 54.8° south, and is generally accepted as the southernmost city on Earth. Most Antarctic cruises leave from here; the Drake Passage crossing takes about two days.
The clock: Ushuaia keeps UTC−3 and swings from roughly 17 hours 20 minutes of daylight in December to about 7 hours in June — the reverse of everywhere in the northern hemisphere on the same calendar.
Ushuaia lies at 68.3°W. Its time zone, UTC−3, is built around the 45°W meridian. The 23.3° gap between them means the clock runs roughly 93 minutes ahead of the sun: solar noon arrives at about 13:33 rather than 12:00. The zone holds UTC−3 all year — there is no daylight saving here.
The longest day of 2026 is 22 December, with 17h 19m of daylight. The shortest is 22 June, with 7h 12m. The swing between them is 10h 7m. This is the latitude band where the difference between summer and winter evenings is most obvious.
The earliest sunrise and the latest sunset do not land on the longest day. In Ushuaia the sun comes up earliest on 16 December at 04:50, while the latest sunset waits until 29 December at 22:13. 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 Ushuaia that civil twilight runs about 36 minutes at the equinox, stretching to 57 minutes at the solstice.
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 Ushuaia, Argentina is America/Argentina/Ushuaia with a current UTC offset of UTC−3.
Ushuaia has an estimated population of 80K and is located at coordinates 54.80°S, 68.30°W.
Ushuaia gets 17h 19m of daylight on its longest day and 7h 12m on its shortest, averaging 12h 9m a day across the year.
Solar noon in Ushuaia falls at about 13:33 on UTC−3 standard time, because the city sits 23.3° from the meridian its zone is built on.
The Southernmost City in the World: Ushuaia sits at 54.8° south, and is generally accepted as the southernmost city on Earth. Most Antarctic cruises leave from here; the Drake Passage crossing takes about two days.