What is the ISO week number in San Antonio?

TimeDials shows the current ISO week number for San Antonio in real time. ISO week numbers follow the ISO 8601 standard, where week 1 is the week containing the first Thursday of the year.

Does San Antonio observe daylight saving time (DST)?

Yes, San Antonio observes daylight saving time. The next clock change is on 2026-04-05 (clocks move back to GMT-4).

Time in San Antonio, Valparaíso, Chile — Local Time & Date

Live

--:--:--

Current local time in 🇨🇱 San Antonio, Valparaíso, Chile.

CLT/CLST UTC-03:00

Relative to You

Detecting your timezone…

Relative to UTC

-3 hours behind

Noon here = 15:00 UTC

09:00 here = 12:00 UTC

12:00 here = 15:00 UTC

17:00 here = 20:00 UTC

ISO Week

11 Odd Week

Sun

07:35

19:57

Today

Morning rush in San Antonio. Commuters fill the streets, cafés are buzzing. The current offset is UTC-03:00.

Daylight Saving Time

Last Clock Change

2025-09-07

Clocks moved forward to GMT-3

Next Clock Change

2026-04-05

Clocks will move back to GMT-4

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Quick Facts

Country	🇨🇱Chile
State / Region	Valparaíso
Timezone	CLT/CLST
UTC Offset	UTC-03:00
DST	Yes — daylight saving time observed
Population	87,675
Elevation	39 m
Sunrise	07:35
Sunset	19:57
Coordinates	-33.59°N, -71.61°E

Map

Map data © OpenStreetMap contributors

Time Difference to Major Cities

City	Difference	Local Time
New York	-1h	--:--
Los Angeles	-4h	--:--
London	+3h	--:--
Paris	+4h	--:--
Dubai	+7h	--:--
Mumbai	+8h 30m	--:--
Singapore	+11h	--:--
Tokyo	+12h	--:--
Sydney	+14h	--:--
Sao Paulo	+0h	--:--
Cairo	+5h	--:--
Shanghai	+11h	--:--

Frequently Asked Questions

What are the business hours in San Antonio?

Standard business hours in San Antonio are 09:00–17:00 local time (CLT/CLST). Check the live clock above to see the current local time. Use our Time Zone Planner to find the best meeting time across cities.

What is the UTC offset for San Antonio?

San Antonio is currently at UTC-03:00. The timezone identifier is CLT/CLST. When it is noon in San Antonio, it is 15:00 UTC. You can embed a live San Antonio clock on your website.

What ISO week number is it in San Antonio?

It is currently ISO week 11 (odd week) in San Antonio. ISO week numbers follow the ISO 8601 standard, where week 1 is the week containing the first Thursday of the year. Learn more about ISO week numbers.

Does San Antonio observe daylight saving time?

Yes, San Antonio observes daylight saving time (DST). The most recent change was on 2025-09-07, when clocks moved forward to GMT-3. The next change is on 2026-04-05, when clocks will move back to GMT-4.