Current Time in Byron, Contra Costa County, California, USA

10:06:17 AM

10:06:17

PDT (Pacific Daylight Time) · UTC−07:00

America/Los_Angeles

Clock format
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Time zone details

Byron is observing daylight saving time in 2026

Daylight in Byron

Sunrise7:25 AMSolar noon12:50 PMSunset6:15 PM
Next clock changeNov 1, 2026 · Clocks move back 1 hour · in 6 days 15 hoursUpcomingView detailsWeather nowLoading current forecast…Forecast details

Location facts

Place

Country
USA
State
California
County
Contra Costa County
Place type
Populated place
Country currency
US Dollar (USD)

Practical

Country languages
English, Spanish, Hawaiian, French
Dialing code
+1
Population
1,277
Elevation
10 m

Geography

Geographic coordinates
37° 52' N / 121° 38' W
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Clock changes in Byron

Next clock change

Upcoming

2:00 AM PDT1:00 AM PST

Clocks move back 1 hour

2026

  1. past

    Daylight saving time starts

    2:00 AM PST3:00 AM PDT

    Clocks move forward 1 hour

  2. upcoming

    Daylight saving time ends

    2:00 AM PDT1:00 AM PST

    Clocks move back 1 hour

Future clock changes, 2027–2030
USA daylight saving timeClock changes worldwide

Sun & Moon details

Sun

Sunrise
Solar noon
Sunset
Daylight duration
10 hr 51 min2 min 15 sec shorter than the previous day

Twilight

Civil twilight
–
Nautical twilight
–
Astronomical twilight
–
Full MoonMoon illumination100%
View full Sun & Moon detailsHide full Sun & Moon details

Sunday, October 25, 2026

View Byron on SavvyTime's time-zone map

Sun

Sunrise
Sunset
Day length
10 hr 51 min2 min 15 sec shorter than the previous day
Solar noon
(39.8° altitude)

Civil twilight

Dawn to dusk
–

Additional twilight

Nautical dawn to dusk
–
Astronomical dawn to dusk
–

Moon

Phase
Full Moon (100% illuminated)
Moonrise
Moonset
Previous principal phase
First Quarter — Sunday, October 18, 2026 at
Next principal phase
Full Moon — Sunday, October 25, 2026 at

Seven-day daylight outlook

Sunrise, sunset, and daylight for seven local dates
Local dateSunriseSunsetDay lengthDaily change
10 hr 51 min2 min 15 sec shorter than the previous day
10 hr 48 min2 min 14 sec shorter than the previous day
10 hr 46 min2 min 13 sec shorter than the previous day
10 hr 44 min2 min 12 sec shorter than the previous day
10 hr 42 min2 min 12 sec shorter than the previous day
10 hr 40 min2 min 10 sec shorter than the previous day
10 hr 37 min2 min 9 sec shorter than the previous day

Weather forecast for Byron

Temperature unit

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Plan around Byron

Upcoming public holidays in California

  1. Veterans Day
  2. Thanksgiving Day
  3. Day after Thanksgiving Day

Nearby places

BrentwoodContra Costa County9 kmNWOakleyContra Costa County16 kmNWAntiochContra Costa County21 kmNWTracySan Joaquin County23 kmSELivermoreAlameda County24 kmSWPittsburgContra Costa County28 kmNWPleasantonAlameda County31 kmSWSan RamonContra Costa County31 kmWDublinAlameda County32 kmSWStocktonSan Joaquin County32 kmELathropSan Joaquin County32 kmEDanvilleContra Costa County32 kmW
Browse places in USA

Frequently asked questions

What time zone is Byron in?
Byron uses Pacific Standard Time (PST, UTC−8) in winter and Pacific Daylight Time (PDT, UTC−7) in summer. Its IANA time zone is America/Los_Angeles.
When is the next clock change in Byron?
Clocks in Byron move backward 1 hour on Sunday, November 1, 2026 at 2:00 AM, changing from PDT (UTC−07:00) to PST (UTC−08:00)
Does Byron observe daylight saving time?
Yes. Byron observes daylight saving time: PDT (UTC−7) in summer and PST (UTC−8) in winter.
What is the UTC offset of Byron?
Byron is UTC−8 in winter and UTC−7 in summer