Time Now in Castro Valley, United States 🇺🇸
Lat/Long: 37.69° N, 122.09° W
Elevation: 50 m above sea level
Population rank: #722 of 21,150 cities in United States by population
State: California
Country: 🇺🇸 United States (North America)
IANA Timezone: America/Los_Angeles
Solar time: clocks run about 1h 10m ahead of the sun
Timezone: PDT
Daylight Saving Time: Yes ✅ (Abbreviation: PDT) (When does Daylight Savings Time end?)
Standard Timezone Abbreviations used in United States: AKST, CST, EST, HST, MST, PST
Daylight Saving Timezone Abbreviations used in United States: AKDT, CDT, EDT, HDT, MDT, PDT
Local time in Castro Valley runs on a UTC−08:00 offset (America/Los_Angeles). Daylight saving time is in effect right now, so the city is an hour ahead of its standard offset. Day and night are close to even today, with about 13 hours of daylight. Being in the temperate belt, Castro Valley sees markedly longer summer days and shorter winter ones. Castro Valley sits at a modest 50 m above sea level. Castro Valley is fairly isolated: even Los Angeles lies some 533 km off. A major centre in the United States, Castro Valley keeps a busy schedule across its time zone.
The sun rises over Castro Valley at 06:41 and sets at 19:32, giving 12h 51m of daylight today.
Time & Daylight in Castro Valley
Daylight Hours in Castro Valley
Castro Valley gets 12h 51m of daylight today. Sunrise in Castro Valley is at 06:41 and sunset in Castro Valley is at 19:32.
Daylight ranges from about 9h 33m near the December solstice to 14h 46m near the June solstice.
Time Difference Between Castro Valley and Major Cities
Live local time and the difference from Castro Valley right now.
Best Time to Call Castro Valley
How standard business hours (9:00 to 17:00) in major hubs line up with the clock in Castro Valley:
Other Cities in United States with Local Time
Cities Sharing Castro Valley's Time Zone (UTC-07:00)
These major cities are at the same UTC offset as Castro Valley.
Weather in Castro Valley
Tools to Plan Meetings
Prayer Times in Castro Valley
| Date | Fajr | Sunrise | Dhuhr | Asr | Maghrib | Isha |
|---|---|---|---|---|---|---|
| Fri, 4 Sep ● | 05:07 | 06:41 | 13:07 | 16:45 | 19:33 | 21:03 |
| Sat, 5 Sep | 05:08 | 06:41 | 13:07 | 16:44 | 19:32 | 21:02 |
| Sun, 6 Sep | 05:09 | 06:42 | 13:06 | 16:43 | 19:30 | 21:00 |
| Mon, 7 Sep | 05:10 | 06:43 | 13:06 | 16:42 | 19:29 | 20:59 |
| Tue, 8 Sep | 05:11 | 06:44 | 13:06 | 16:41 | 19:27 | 20:57 |
| Wed, 9 Sep | 05:12 | 06:45 | 13:05 | 16:40 | 19:26 | 20:56 |
| Thu, 10 Sep | 05:13 | 06:46 | 13:05 | 16:39 | 19:24 | 20:54 |
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Castro Valley Prayer Times Widget
Show daily prayer times for Castro Valley on any website
Castro Valley Weather Widget
Current conditions and 7-day forecast for Castro Valley
Castro Valley Sunrise & Sunset Widget
Sunrise, sunset, day length, and twilight times for Castro Valley
Castro Valley Moon Phase Widget
Current phase, illumination, and next full/new moon for Castro Valley
Castro Valley Countdown Timer Widget
Live event countdown in Castro Valley local time
14-day Forecast for Castro Valley
Sunrise & Sunset Times for Castro Valley
Sunrise
in Castro Valley
↑
6:41 AM
Sunset
in Castro Valley
↓
7:32 PM
Day Length
12h 51m
Dawn
in Castro Valley
6:14 AM
Dusk
in Castro Valley
7:59 PM
View detailed past and future sunrise, sunset, and twilight times for Castro Valley. Track daylight hours, sun phases, and more.
Moon Phases & Times for Castro Valley
Current Phase
Last Quarter
Illumination
49.1%
Next Moonrise
↑
Tomorrow, 00:16
Next Moonset
↓
Today, 15:02
Distances & Clock Changes in Castro Valley
How Far Is Castro Valley From Other Major Cities?
| City | Distance | Direction |
|---|---|---|
| Los Angeles | 533 km | SE (138deg) |
| New York | 4,105 km | ENE (70deg) |
| Tokyo | 8,304 km | WNW (304deg) |
| London | 8,609 km | NNE (33deg) |
| Paris | 8,945 km | NNE (33deg) |
| Moscow | 9,448 km | NNE (11deg) |
| Sao Paulo | 10,404 km | ESE (117deg) |
| Hong Kong | 11,124 km | NW (309deg) |
When Do the Clocks Change in Castro Valley?
Castro Valley next changes its clocks on November 1, 2026, when the clocks fall back by one hour.
Castro Valley's Antipode: The Opposite Side of the Earth
Dig straight through the Earth from Castro Valley and you would surface in the open ocean, near 37.7deg S, 57.9deg E.
Frequently Asked Questions about Castro Valley
What time is it in Castro Valley right now?
The current local time in Castro Valley is 02:56 on Friday, September 04, 2026. Castro Valley follows the America/Los_Angeles time zone.
What time zone is Castro Valley in?
Castro Valley uses the America/Los_Angeles IANA time zone (UTC-07:00). This zone covers the city and surrounding region year-round, with automatic adjustments during daylight saving when applicable.
How many hours ahead or behind UTC is Castro Valley?
Right now Castro Valley sits at UTC-07:00. Going from UTC to local time in Castro Valley means moving the clock 07:00 hours backward.
Is Castro Valley on daylight saving time right now?
Yes. Daylight saving time is in effect in Castro Valley as of September 04, 2026.
What time is sunrise and sunset in Castro Valley today?
Castro Valley sees sunrise at 06:41 and sunset at 19:32 today, giving 12h 51m of daylight.
What moon phase is visible over Castro Valley tonight?
Over Castro Valley tonight the moon shows a Last Quarter phase at 49.1% illumination.
What is solar time in Castro Valley?
Solar time follows the Sun's actual position, with solar noon when the Sun is highest in the sky. In Castro Valley, clocks run about 1h 10m ahead of local solar time, because the official time zone does not exactly match the Sun's position.