What time zone is Green River in?

Green River 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 Green River?

Clocks in Green River 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 Green River observe daylight saving time?

Yes. Green River observes daylight saving time: MDT (UTC−6) in summer and MST (UTC−7) in winter.

What is the UTC offset of Green River?

Green River is UTC−7 in winter and UTC−6 in summer

Current Time in Green River, Sweetwater County, Wyoming, USA

3:15:26 PM

15:15:26

Sunday, October 25, 2026

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

America/Denver

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Time zone details

Green River is observing daylight saving time in 2026

Daylight in Green River

Sunrise7:42 AMSolar noon1:01 PMSunset6:21 PM

Next clock changeNov 1, 2026 · Clocks move back 1 hour · in 6 days 10 hoursUpcomingView details Weather nowLoading current forecast…Forecast details

Location facts

Place

Country: USA
State: Wyoming
County: Sweetwater County
Place type: City or town
Country currency: US Dollar (USD)

Practical

Country languages: English, Spanish, Hawaiian, French
Dialing code: +1
Population: 12,465
Elevation: 1,864 m

Geography

Geographic coordinates: 41° 31' N / 109° 27' W

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Clock changes in Green River

Next clock change

Upcoming

Sunday, November 1, 2026

2:00 AM MDT1:00 AM MST

Clocks move back 1 hour

Sunday, March 8, 2026past
Daylight saving time starts
2:00 AM MST3:00 AM MDT
Clocks move forward 1 hour
Sunday, November 1, 2026upcoming
Daylight saving time ends
2:00 AM MDT1:00 AM MST
Clocks move back 1 hour

Future clock changes, 2027–2030

USA daylight saving time Clock changes worldwide

Sun & Moon details

Sunrise: 7:42 AM
Solar noon: 1:01 PM
Sunset: 6:21 PM
Daylight duration: 10 hr 39 min2 min 34 sec shorter than the previous day

Civil twilight: 7:13 AM – 6:50 PM
Nautical twilight: 6:40 AM – 7:22 PM
Astronomical twilight: 6:08 AM – 7:54 PM

Full MoonMoon illumination100%

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Sunday, October 25, 2026

View Green River on SavvyTime's time-zone map

Sun

Sunrise: 7:42 AM (east, 105.7°)
Sunset: 6:21 PM (west, 254.0°)
Day length: 10 hr 39 min2 min 34 sec shorter than the previous day
Solar noon: 1:01 PM (36.2° altitude)

Civil twilight

Dawn to dusk: 7:13 AM – 6:50 PM

Additional twilight

Nautical dawn to dusk: 6:40 AM – 7:22 PM
Astronomical dawn to dusk: 6:08 AM – 7:54 PM

Moon

Phase: Full Moon (100% illuminated)
Moonrise: 5:49 PM (east, 69.0°)
Moonset: 7:10 AM (west, 287.5°)
Previous principal phase: First Quarter — Sunday, October 18, 2026 at 10:13 AM
Next principal phase: Full Moon — Sunday, October 25, 2026 at 10:12 PM

Seven-day daylight outlook

Sunrise, sunset, and daylight for seven local dates
Local date	Sunrise	Sunset	Day length	Daily change
Sunday, October 25	7:42 AM	6:21 PM	10 hr 39 min	2 min 34 sec shorter than the previous day
Monday, October 26	7:43 AM	6:19 PM	10 hr 37 min	2 min 34 sec shorter than the previous day
Tuesday, October 27	7:44 AM	6:18 PM	10 hr 34 min	2 min 32 sec shorter than the previous day
Wednesday, October 28	7:45 AM	6:17 PM	10 hr 31 min	2 min 32 sec shorter than the previous day
Thursday, October 29	7:46 AM	6:15 PM	10 hr 29 min	2 min 30 sec shorter than the previous day
Friday, October 30	7:47 AM	6:14 PM	10 hr 26 min	2 min 30 sec shorter than the previous day
Saturday, October 31	7:49 AM	6:13 PM	10 hr 24 min	2 min 28 sec shorter than the previous day

Weather forecast for Green River

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Plan around Green River

Upcoming public holidays in Wyoming

Wed, Nov 11, 2026Veterans Day
Thu, Nov 26, 2026Thanksgiving Day
Fri, Dec 25, 2026Christmas Day

Nearby places

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Frequently asked questions

What time zone is Green River in?: Green River 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 Green River?: Clocks in Green River 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 Green River observe daylight saving time?: Yes. Green River observes daylight saving time: MDT (UTC−6) in summer and MST (UTC−7) in winter.
What is the UTC offset of Green River?: Green River is UTC−7 in winter and UTC−6 in summer