Time in Castro Valley, United States now

16:13:42

DaytimeTuesday, June 30, 2026Week 27Today: Asteroid Day

Key facts

TimezoneAmerica/Los_Angeles

AbbreviationPDT

UTC offsetGMT-7

Unix time1782861222

UTC time2026-06-30T23:13:42.908Z

Current year2026

CountryUnited States

Latitude37.694097

Longitude-122.086352

Day of weekTuesday

Day of year181

Week number27

Castro Valley on the map

Castro Valley is a city in California, United States.
Latitude: 37.6941. Longitude: -122.0864
Timezone: America/Los_Angeles

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Time zone info for Castro Valley

UTC-7

America/Los_Angeles

Castro Valley follows America/Los_Angeles. The local time is calculated from IANA time zone data.

Methodology and trust

About this Castro Valley time page

This Castro Valley page combines live clock output with timezone, offset, holiday, and daylight context so the page is useful beyond a single timestamp.

Last reviewedJune 28, 2026

Template logic, page copy, and trust notes were reviewed manually in the current rollout.

Time and DST sourceAmerica/Los_Angeles

Displayed local time follows the IANA timezone identifier assigned to this page and updates live in the browser.

Weather and solar layerOpen-Meteo + coordinate calculations

Weather context uses Open-Meteo. Sunrise, sunset, and day-length details are shown as informational timing context.

Holiday coverageUS holiday dataset

Calendar and next-holiday data use normalized HolidayFinder coverage with a date-holidays fallback. Regional holiday matches can also include California where source coverage is available.

Read the full editorial methodology and data sources, see who publishes the site, or send corrections through the contact page.

Live conditions

Weather in Castro Valley now

ConditionLive weather

TemperatureLoads instantly in the browser

Feels likeLive

HumidityLive

WindLive

GustsLive

LightDay or night

Map sceneWeather-aware

Sunrise, sunset, day length and solar time for Castro Valley

Sunrise: 04:43
Sunset: 19:17
Day length: 14h 35m
Solar noon: 12:00
The solar values are estimated from latitude and day of year.

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