Americas · South America · Sovereign state
Current time in Argentina
A single time zone at UTC-03:00.
Wednesday, October 14, 2026
About Argentina's time
A single time zone.
Argentina operates on a single timezone of UTC-3 across its entire mainland, which keeps things simple for a country that stretches over 3,700 km from north to south—dawn and sunset times can feel quite different depending on where you are.
Major cities
Cities of Argentina.
History
How Argentina keeps time.
Argentina first adopted standardized time on October 31, 1894, taking the local mean time of Córdoba (UTC-04:16:48) as the national standard to improve railway scheduling and telegraph coordination. In 1920 this was replaced by a round offset, UTC-04:00.
During parts of the 20th century, Argentina experimented intermittently with daylight saving time, adopting it sporadically during energy crises or economic instability, but it was frequently dropped due to public opposition and inconsistent results across different provinces.
The most significant modern shift came in October 1969, when standard time moved from UTC-4 to UTC-3. Argentina last observed daylight saving time (UTC-2) in the summers of 2007–08 and 2008–09 and hasn't returned to it since.
Over the years, Argentina has used three main offsets: UTC-4:16:48 (1894–1920), UTC-4 (1920–1969), and UTC-3 (1969–present). The 12 time zones listed for Argentina reflect historical and provincial variations, though today the entire country observes UTC-3 uniformly.
Did you know?
Things about Argentina's time.
Despite its immense north-to-south span—over 3,700 km—Argentina uses just one timezone. It also spans about 20 degrees of longitude, so solar noon comes more than an hour later in western Patagonia than in Misiones in the northeast, but clocks tell the same time everywhere.
Argentina's reintroduction of daylight saving time at the end of 2007 was controversial. It was meant to save energy, but western provinces, where sunrise already came late, objected; several opted out in 2008, and the practice was dropped after the 2008–09 summer.
The time zone database lists 12 zones for Argentina, but most of these reflect historical provincial differences rather than current practice. Today, all of continental Argentina uses UTC-3, with the multiple entries preserved mainly for historical accuracy.
Convert
Argentina to the world's clocks.
Frequently asked questions
Common questions about Argentina's time zone, daylight saving rules, and how to handle it in software. Can't find what you need? Email [email protected].
- Does Argentina observe daylight saving time?
- No. Argentina has not observed daylight saving time since the late 2000s. The entire country stays on UTC-3 year-round.
- Is the whole country on the same time?
- Yes. All of continental Argentina uses UTC-3, even though natural solar time varies by more than an hour between the country's eastern and western edges.
- Why does Argentina use UTC-3 instead of UTC-4?
- Argentina has used UTC-3 as its standard time since October 1969, when it moved from UTC-4. Most of the country lies closer to the UTC-4 meridian, so UTC-3 works like permanent daylight saving time, with late sunrises and late sunsets.
- What time is sunrise and sunset in Argentina?
- Sunrise and sunset times vary significantly by latitude. In Buenos Aires, sunrise ranges from about 5:40 AM in December to 8:00 AM in June. Further west the sun rises later: in Jujuy, sunrise is around 6:30 AM in December.
- What's the time difference between Argentina and New York?
- Argentina is typically 2 hours ahead of New York (when New York is on EST) and 1 hour ahead when New York is on EDT. Argentina doesn't observe DST, so the difference shifts depending on whether the U.S. does.
- Are there 12 different timezones in Argentina?
- Not currently. The time zone database lists 12 zones for Argentina reflecting historical provincial variations, but today the entire country uses a single offset of UTC-3.
- Is it confusing to travel across Argentina with only one timezone?
- Clocks don't change when you travel across Argentina, which is administratively simple. However, if you travel north to south, you'll notice the sun rises and sets at very different clock times depending on your location.
- What's the time in Buenos Aires?
- Buenos Aires is always UTC-3. You can subtract 3 hours from UTC/GMT to find the current time there.
Source: IANA tzdb2026d · Reviewed
Free · Developer API
This country, as JSON.
Its default time zone, zone and city counts and DST summary, from one endpoint.
Also in the API: time zones by coordinates, conversions that flag daylight saving gaps, and abbreviations decoded.
Moving off WorldTimeAPI? Our drop-in replacement needs no key.