Current Time in Roundup, Musselshell County, Montana, USA

5:14:19 PM

17:14:19

MDT (Mountain Daylight Time) · UTC−06:00

America/Denver

Clock format
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Time zone details

Roundup is observing daylight saving time in 2026

Daylight in Roundup

Sunrise7:46 AMSolar noon12:58 PMSunset6:09 PM
Next clock changeNov 1, 2026 · Clocks move back 1 hour · in 6 days 8 hoursUpcomingView detailsWeather nowLoading current forecast…Forecast details

Location facts

Place

Country
USA
State
Montana
County
Musselshell County
Place type
City or town
Country currency
US Dollar (USD)

Practical

Country languages
English, Spanish, Hawaiian, French
Dialing code
+1
Population
1,836
Elevation
980 m

Geography

Geographic coordinates
46° 26' N / 108° 32' W
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Clock changes in Roundup

Next clock change

Upcoming

2:00 AM MDT1:00 AM MST

Clocks move back 1 hour

2026

  1. past

    Daylight saving time starts

    2:00 AM MST3:00 AM MDT

    Clocks move forward 1 hour

  2. upcoming

    Daylight saving time ends

    2:00 AM MDT1:00 AM MST

    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 23 min3 min 5 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 Roundup on SavvyTime's time-zone map

Sun

Sunrise
Sunset
Day length
10 hr 23 min3 min 5 sec shorter than the previous day
Solar noon
(31.3° 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 23 min3 min 5 sec shorter than the previous day
10 hr 20 min3 min 3 sec shorter than the previous day
10 hr 17 min3 min 3 sec shorter than the previous day
10 hr 14 min3 min 2 sec shorter than the previous day
10 hr 11 min3 min shorter than the previous day
10 hr 08 min2 min 59 sec shorter than the previous day
10 hr 05 min2 min 58 sec shorter than the previous day

Weather forecast for Roundup

Temperature unit

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Plan around Roundup

Upcoming public holidays in Montana

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

Nearby places

BillingsYellowstone County74 kmS
Browse places in USA

Frequently asked questions

What time zone is Roundup in?
Roundup uses Mountain Standard Time (MST, UTC−7) in winter and Mountain Daylight Time (MDT, UTC−6) in summer. Its IANA time zone is America/Denver.
When is the next clock change in Roundup?
Clocks in Roundup move backward 1 hour on Sunday, November 1, 2026 at 2:00 AM, changing from MDT (UTC−06:00) to MST (UTC−07:00)
Does Roundup observe daylight saving time?
Yes. Roundup observes daylight saving time: MDT (UTC−6) in summer and MST (UTC−7) in winter.
What is the UTC offset of Roundup?
Roundup is UTC−7 in winter and UTC−6 in summer