What time zone is Unión in?

Unión uses Argentina Time (ART, UTC−3) all year. Its IANA time zone is America/Argentina/San_Luis.

Does Unión observe daylight saving time?

No. Unión uses ART (UTC−3) all year.

Current Time in Unión, Departamento de Gobernador Vicente Dupuy, San Luis, Argentina

9:25:43 PM

21:25:43

Friday, October 16, 2026

ART (Argentina Time) · UTC−03:00

America/Argentina/San_Luis

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Time zone details

Unión does not observe daylight saving time in 2026

Daylight in Unión

Sunrise6:39 AMSolar noon1:09 PMSunset7:39 PM

Clock change statusNo clock changes are scheduled for Unión in the next 12 monthsView schedule Weather nowLoading current forecast…Forecast details

Location facts

Place

Country: Argentina
Administrative area: San Luis
District: Departamento de Gobernador Vicente Dupuy
Place type: Populated place
Country currency: Argentine Peso (ARS)

Practical

Country languages: Spanish, English, Italian, German, French, Guarani
Dialing code: +54
Population: 2,341
Elevation: Approximately 371 m (DEM estimate)

Geography

Geographic coordinates: 35° 09' S / 65° 56' W

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Clock changes in Unión

No clock or time-zone designation changes in 2026

Future clock changes, 2027–2030

Clock changes worldwide

Sun & Moon details

Sunrise: 6:39 AM
Solar noon: 1:09 PM
Sunset: 7:39 PM
Daylight duration: 13 hr 00 min2 min 9 sec longer than the previous day

Civil twilight: 6:13 AM – 8:05 PM
Nautical twilight: 5:42 AM – 8:36 PM
Astronomical twilight: 5:11 AM – 9:08 PM

First QuarterMoon illumination31%

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Friday, October 16, 2026

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Sun

Sunrise: 6:39 AM (east, 101.6°)
Sunset: 7:39 PM (west, 258.2°)
Day length: 13 hr 00 min2 min 9 sec longer than the previous day
Solar noon: 1:09 PM (63.9° altitude)

Civil twilight

Dawn to dusk: 6:13 AM – 8:05 PM

Additional twilight

Nautical dawn to dusk: 5:42 AM – 8:36 PM
Astronomical dawn to dusk: 5:11 AM – 9:08 PM

Moon

Phase: First Quarter (31% illuminated)
Moonrise: 10:17 AM (southeast, 124.6°)
Moonset: 12:51 AM (southwest, 235.2°)
Previous principal phase: New Moon — Saturday, October 10, 2026 at 12:50 PM
Next principal phase: First Quarter — Sunday, October 18, 2026 at 1:13 PM

Seven-day daylight outlook

Sunrise, sunset, and daylight for seven local dates
Local date	Sunrise	Sunset	Day length	Daily change
Friday, October 16	6:39 AM	7:39 PM	13 hr 00 min	2 min 9 sec longer than the previous day
Saturday, October 17	6:38 AM	7:40 PM	13 hr 02 min	2 min 9 sec longer than the previous day
Sunday, October 18	6:37 AM	7:41 PM	13 hr 04 min	2 min 9 sec longer than the previous day
Monday, October 19	6:36 AM	7:42 PM	13 hr 06 min	2 min 8 sec longer than the previous day
Tuesday, October 20	6:34 AM	7:42 PM	13 hr 08 min	2 min 7 sec longer than the previous day
Wednesday, October 21	6:33 AM	7:43 PM	13 hr 10 min	2 min 7 sec longer than the previous day
Thursday, October 22	6:32 AM	7:44 PM	13 hr 12 min	2 min 6 sec longer than the previous day

Weather forecast for Unión

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Plan around Unión

Upcoming national public holidays in Argentina

Mon, Nov 23, 2026Day of National Sovereignty
Tue, Dec 8, 2026Immaculate Conception of Mary
Fri, Dec 25, 2026Christmas Day

Frequently asked questions

What time zone is Unión in?: Unión uses Argentina Time (ART, UTC−3) all year. Its IANA time zone is America/Argentina/San_Luis.
When is the next clock change in Unión?: No clock changes are scheduled for Unión in the next 12 months
Does Unión observe daylight saving time?: No. Unión uses ART (UTC−3) all year.
What is the UTC offset of Unión?: Unión is UTC−3 all year