Current Time in Rio, Columbia County, Wisconsin, USA

2:25:35 AM

02:25:35

CDT (Central Daylight Time) · UTC−05:00

America/Chicago

Clock format
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Time zone details

Rio is observing daylight saving time in 2026

Daylight in Rio

Sunrise7:23 AMSolar noon12:41 PMSunset5:57 PM
Next clock changeNov 1, 2026 · Clocks move back 1 hour · in 6 days 23 hoursUpcomingView detailsWeather nowLoading current forecast…Forecast details

Location facts

Place

Country
USA
State
Wisconsin
County
Columbia County
Place type
Populated place
Country currency
US Dollar (USD)

Practical

Country languages
English, Spanish, Hawaiian, French
Dialing code
+1
Population
1,044
Elevation
284 m

Geography

Geographic coordinates
43° 26' N / 89° 14' W
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Clock changes in Rio

Next clock change

Upcoming

2:00 AM CDT1:00 AM CST

Clocks move back 1 hour

2026

  1. past

    Daylight saving time starts

    2:00 AM CST3:00 AM CDT

    Clocks move forward 1 hour

  2. upcoming

    Daylight saving time ends

    2:00 AM CDT1:00 AM CST

    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 34 min2 min 46 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 Rio on SavvyTime's time-zone map

Sun

Sunrise
Sunset
Day length
10 hr 34 min2 min 46 sec shorter than the previous day
Solar noon
(34.3° 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 34 min2 min 46 sec shorter than the previous day
10 hr 31 min2 min 44 sec shorter than the previous day
10 hr 29 min2 min 44 sec shorter than the previous day
10 hr 26 min2 min 42 sec shorter than the previous day
10 hr 23 min2 min 42 sec shorter than the previous day
10 hr 21 min2 min 40 sec shorter than the previous day
10 hr 18 min2 min 39 sec shorter than the previous day

Weather forecast for Rio

Temperature unit

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Plan around Rio

Upcoming public holidays in Wisconsin

  1. Election Day
  2. Veterans Day
  3. Thanksgiving Day

Nearby places

Sun PrairieDane County29 kmSBeaver DamDodge County33 kmEMadisonDane County44 kmSMiddletonDane County44 kmSWWatertownJefferson County50 kmSEFitchburgDane County57 kmSOconomowocWaukesha County71 kmSEFond du LacFond du Lac County74 kmNEOshkoshWinnebago County85 kmNEWest BendWashington County85 kmEJanesvilleRock County87 kmSGermantownWashington County95 kmE
Browse places in USA

Frequently asked questions

What time zone is Rio in?
Rio uses Central Standard Time (CST, UTC−6) in winter and Central Daylight Time (CDT, UTC−5) in summer. Its IANA time zone is America/Chicago.
When is the next clock change in Rio?
Clocks in Rio move backward 1 hour on Sunday, November 1, 2026 at 2:00 AM, changing from CDT (UTC−05:00) to CST (UTC−06:00)
Does Rio observe daylight saving time?
Yes. Rio observes daylight saving time: CDT (UTC−5) in summer and CST (UTC−6) in winter.
What is the UTC offset of Rio?
Rio is UTC−6 in winter and UTC−5 in summer