What time is it in Boulder right now?

Boulder is on America/Denver, currently UTC−6. The clock at the top of this page shows the live local time and updates every second in your browser.

What time zone is Boulder in?

Boulder uses the IANA time zone America/Denver, which is UTC−6 at the moment. The offset shifts across the year because the zone observes daylight saving time.

Does Boulder observe daylight saving time?

Yes. The next change is on Sun, Nov 1, 2026, when clocks go back to UTC−7.

What time do the sun rise and set in Boulder today?

Today the sun rises at about 6:03 AM and sets at about 8:10 PM local time in Boulder, giving roughly 14h 7m of daylight. Solar noon falls at 1:07 PM.

United States · Colorado

Current local time in Boulder

Boulder keeps time on the America/Denver zone, currently UTC−6. The offset shifts twice a year with daylight saving, and the clock below always reflects the rule in force today. The clock runs live in your browser; nothing about your location is sent anywhere.

Current local time

Boulder, Colorado

08:50

Fri, Jul 31UTC−6

Boulder time zone at a glance

IANA time zone: America/Denver
Current UTC offset: UTC−6
Daylight saving: Observed
Next clock change: Sun, Nov 1, 2026 → UTC−7
Country: United States
Region: Colorado
Coordinates: 40.01°, -105.27°
Population: 106,803
Local date: Fri, Jul 31, 2026

Sunrise and sunset in Boulder today

Computed from Boulder's latitude and longitude for the current local date. Times shift by a minute or two either side depending on elevation and the horizon you actually see.

Sunrise: 6:03 AM
Sunset: 8:10 PM
Solar noon: 1:07 PM
Day length: 14h 7m
Civil dawn: 5:28 AM
Civil dusk: 8:45 PM
Golden hour ends: 6:37 AM
Golden hour begins: 7:37 PM

Full twilight and golden-hour breakdown

Boulder time difference from major cities

City	Local time now	Boulder is
Los AngelesUnited States	07:50 AM	1h ahead
LondonUnited Kingdom	03:50 PM	7h behind
DubaiUnited Arab Emirates	06:50 PM	10h behind
TokyoJapan	11:50 PM	15h behind

Need a different pair? Compare any two cities or convert a specific time.

Working with Boulder time

Scheduling across America/Denver is where most calendar mistakes start — a meeting agreed in one zone drifts by an hour the moment either side changes its clocks. These tools each handle a piece of that problem.

Find a meeting timeSee which hours overlap between Boulder and everywhere else on your team.Convert a timeTranslate a specific moment into or out of America/Denver.Track clock changesSee exactly when Boulder next changes its clocks.Add to your boardKeep Boulder beside your other cities, ticking live.Business hours overlapWork out the window where Boulder offices and yours are both open.Send a calendar inviteExport an event with America/Denver baked in, not guessed.

Other cities in United States

Denver Albuquerque El Paso Oklahoma City Phoenix Tucson Las Vegas Fort Worth Dallas Austin

All United States cities and time zones

Bouldertime — questions & answers

What time is it in Boulder right now?: Boulder is on America/Denver, currently UTC−6. The clock at the top of this page shows the live local time and updates every second in your browser.
What time zone is Boulder in?: Boulder uses the IANA time zone America/Denver, which is UTC−6 at the moment. The offset shifts across the year because the zone observes daylight saving time.
Does Boulder observe daylight saving time?: Yes. The next change is on Sun, Nov 1, 2026, when clocks go back to UTC−7.
What time do the sun rise and set in Boulder today?: Today the sun rises at about 6:03 AM and sets at about 8:10 PM local time in Boulder, giving roughly 14h 7m of daylight. Solar noon falls at 1:07 PM.