What time zone is San Antonio in?

San Antonio currently uses Chile Summer Time (UTC−03:00). Its IANA time zone is America/Santiago.

When is the next clock change in San Antonio?

Clocks in San Antonio move backward 1 hour on Sunday, April 4, 2027 at 12:00 AM, changing from -03 (UTC−03:00) to -04 (UTC−04:00)

What is the UTC offset in San Antonio right now?

San Antonio is currently UTC−03:00

Current Time in San Antonio, Valparaiso, Chile

7:40:03 PM

19:40:03

Friday, September 11, 2026

-03 (Chile Summer Time) · UTC−03:00

America/Santiago

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Time zone details

San Antonio is observing daylight saving time in 2026

Daylight in San Antonio

Sunrise7:50 AMSolar noon1:42 PMSunset7:35 PM

Next clock changeApr 4, 2027 · Clocks move back 1 hour · in 204 daysUpcomingView details Weather nowLoading current forecast…Forecast details

Location facts

Place

Country: Chile
Administrative area: Valparaiso
District: San Antonio Province
Place type: Populated place
Country currency: Chilean Peso (CLP)

Practical

Languages: Spanish
Dialing code: +56
Population: 87,675
Elevation: Approximately 39 m (DEM estimate)

Geography

Geographic coordinates: 33° 35' S / 71° 36' W

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Popular conversions (current offsets)

San Antonio to GMT-3 3 hours ahead San Antonio to ART Same time San Antonio to BRT Same time San Antonio to PYST Same time San Antonio to UYT Same time San Antonio to SRT Same time

All times shown relative to San Antonio local time

Clock changes in San Antonio

Next clock change

Upcoming

Sunday, April 4, 2027

12:00 AM -0311:00 PM -04

Clocks move back 1 hour

2026

Sunday, April 5, 2026past
Daylight saving time ends
12:00 AM -0311:00 PM -04
Clocks move back 1 hour
Sunday, September 6, 2026past
Daylight saving time starts
12:00 AM -041:00 AM -03
Clocks move forward 1 hour

Future clock changes, 2027–2030

Sun & Moon details

Sunrise: 7:50 AM
Solar noon: 1:42 PM
Sunset: 7:35 PM
Daylight duration: 11 hr 45 min2 min 2 sec longer than the previous day

Civil twilight: 7:26 AM – 8:00 PM
Nautical twilight: 6:57 AM – 8:29 PM
Astronomical twilight: 6:28 AM – 8:58 PM

New MoonMoon illumination0%

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Friday, September 11, 2026

View San Antonio on SavvyTime's time-zone map

Sun

Sunrise: 7:50 AM (east, 85.2°)
Sunset: 7:35 PM (west, 274.6°)
Day length: 11 hr 45 min2 min 2 sec longer than the previous day
Solar noon: 1:42 PM (52.1° altitude)

Civil twilight

Dawn to dusk: 7:26 AM – 8:00 PM

Additional twilight

Nautical dawn to dusk: 6:57 AM – 8:29 PM
Astronomical dawn to dusk: 6:28 AM – 8:58 PM

Moon

Phase: New Moon (0% illuminated)
Moonrise: 7:57 AM (east, 88.7°)
Moonset: 8:22 PM (west, 267.3°)
Previous principal phase: New Moon — Friday, September 11, 2026 at 12:27 AM
Next principal phase: First Quarter — Friday, September 18, 2026 at 5:44 PM

Seven-day daylight outlook

Sunrise, sunset, and daylight for seven local dates
Local date	Sunrise	Sunset	Day length	Daily change
Friday, September 11	7:50 AM	7:35 PM	11 hr 45 min	2 min 2 sec longer than the previous day
Saturday, September 12	7:49 AM	7:36 PM	11 hr 47 min	2 min 2 sec longer than the previous day
Sunday, September 13	7:48 AM	7:36 PM	11 hr 49 min	2 min 2 sec longer than the previous day
Monday, September 14	7:46 AM	7:37 PM	11 hr 51 min	2 min 3 sec longer than the previous day
Tuesday, September 15	7:45 AM	7:38 PM	11 hr 53 min	2 min 3 sec longer than the previous day
Wednesday, September 16	7:44 AM	7:38 PM	11 hr 55 min	2 min 3 sec longer than the previous day
Thursday, September 17	7:42 AM	7:39 PM	11 hr 57 min	2 min 3 sec longer than the previous day

Weather forecast for San Antonio

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Plan around San Antonio

Time context

San Antonio follows the same clock and daylight-saving rules as Santiago

Current time offsetUTC−03:00 (-03)

View time differences

Upcoming national public holidays in Chile

Fri, Sep 18, 2026National holiday
Sat, Sep 19, 2026Army Day
Mon, Oct 12, 2026Columbus Day

Nearby scheduled airports for San Antonio, Valparaiso, Chile

Comodoro Arturo Merino Benítez International AirportSCLLarge airport · Serves Santiago79.4 km east-northeast

Source: OurAirports record · SCL / SCEL

About 79.4 km (49.3 mi) east-northeast of San Antonio

Scheduled airline service in source data

View San Antonio area on map

Nearby places

CartagenaSan Antonio ProvinceChile5 kmN MelipillaProvincia de MelipillaChile38 kmE El MonteProvincia de TalaganteChile58 kmE ValparaísoProvincia de ValparaísoChile62 kmN QuilpuéProvincia de Marga MargaChile63 kmN TalaganteProvincia de TalaganteChile63 kmE Viña del MarProvincia de ValparaísoChile64 kmN Villa AlemanaProvincia de Marga MargaChile65 kmN Chicureo AbajoProvincia de ChacabucoChile95 kmE Hacienda La CaleraProvincia de QuillotaChile97 kmN

Browse places in Chile

Frequently asked questions

What time zone is San Antonio in?: San Antonio currently uses Chile Summer Time (UTC−03:00). Its IANA time zone is America/Santiago.
When is the next clock change in San Antonio?: Clocks in San Antonio move backward 1 hour on Sunday, April 4, 2027 at 12:00 AM, changing from -03 (UTC−03:00) to -04 (UTC−04:00)
Is San Antonio currently on daylight saving time?: San Antonio is observing daylight saving time in 2026
What is the UTC offset in San Antonio right now?: San Antonio is currently UTC−03:00