What time is it in Union, San Luis, Argentina
The exact time in Union, San Luis, Argentina is given here, for the America/Argentina/San_Luis time zone (−3).
Union, Argentina
Wednesday, 28 October 2026
UTC−3 · America/Argentina/San_Luis
Local time in Union
UTC−3 · no daylight saving time
Union keeps America/Argentina/San_Luis clock_time.
The sun today
Sunrise 6:27 AM Solar noon 1:09 PM Sunset 7:51 PM Daylight 13 h 24 min Night 10 h 36 min Civil twilight 6:00 AM – 8:17 PM
Weather in Union right now
Loading the current weather…
Weather data by Open-Meteo, updated every 30 minutes.
Union and its neighbours
Postal codes
- 2357 UNION
- 6216 UNION
Postal codes come from the free GeoNames dataset. Where a code is listed with a distance, it belongs to a nearby settlement — GeoNames spells that name differently from ours.
Largest cities in San Luis
- San Luis 169 947
- Villa Mercedes 96 781
- La Punta 15 000
- Merlo 11 159
- Justo Daract 9 680
- La Toma 6 663
Other places named Union
- Union New Jersey, United States
- Union Missouri, United States
- Union South Carolina, United States
- Union Ohio, United States
- Union Kentucky, United States
Nearby places
- La Estrella — 14.2 km
- Colonia Urdaniz — 15.4 km
- Cochequingan — 17.4 km
- Tres Amigos — 18.1 km
- Polledo — 18.7 km
- La Melina — 22.1 km
Union: clock, sun and surroundings
Union runs its day on America/Argentina/San_Luis, which is offset UTC−3. Seasonal time adjustment: No.
The sun rises at 6:27 AM, sets at 7:51 PM, and stays over Union for 13 h 24 min. That is today's daylight.
The time in Union is also the time in nearby La Estrella and Colonia Urdaniz.
2 postal codes serve Union.
Questions and answers
- Do you know which time zone Union uses?
- Union uses the America/Argentina/San_Luis time zone, with an offset of −3.
- Does the clock in Union follow a summer time schedule?
- Daylight saving in Union: No.
- Tell me the sunset hour in Union.
- The sunset hour is 7:51 PM.