Time Zones| Zone areas | Time now | January 2026 | July 2026 | Largest cities |
|---|---|---|---|---|
| Buenos Aires, Cordoba, Tucuman, Salta, Jujuy, La Rioja and 6 more | --:-- | UTC−3 | UTC−3 | Buenos Aires, Mar del Plata, Avellaneda, Bahía Blanca |
How many times does Argentina have?
The IANA database lists 12 separate zone areas for Argentina. Grouped by the time they actually show through 2026, that makes one clock for the whole country, listed above. Every area is on UTC−3 in January.
None of them changes its clocks during the year.
Planning across the country
When you fix a call or a broadcast for people in several parts of Argentina, give the time with its zone, or use the converter to show every zone at once.
Where most people are
The towns of 15,000 people or more in Argentina hold about 26 million people between them (GeoNames figures), and all of them read the same clock: UTC−3. The largest is Buenos Aires.
Why several areas, if the clock is the same?
Every part of Argentina shows the same time today. The time zone database still keeps 12 separate entries, because at some point in the past these places kept different times, or changed their clocks on different dates. Software needs the separate entries to work out old dates correctly. For today and for the future, you can treat the country as one time zone.
The sun across Argentina
Clocks are set by law, but the sun keeps its own time. In Río Gallegos, the most westerly of the main cities (about 69.2° west), the sun is highest at about 1:37 pm by the clock in January. In Buenos Aires, the most easterly (about 58.4° west), it is highest at about 12:54 pm. The closer that figure is to 12:00, the better the clock fits the daylight in that city. From north to south the length of the day differs too: around 21 June the sun is up for about 10 hours 38 minutes in San Salvador de Jujuy and about 7 hours 12 minutes in Ushuaia.
Argentina and the rest of the world
When it is 12:00 noon in Buenos Aires, it is 8:30 pm in India; 3:00 pm in London in January and 4:00 pm in July; 10:00 am in New York in January and 11:00 am in July. Other parts of Argentina are earlier or later than that by the amounts in the table at the top of this page.