Time Now in Boulder, United States 🇺🇸
Lat/Long: 40.01° N, 105.27° W
Elevation: 1,624 m above sea level
Population rank: #323 of 21,150 cities in United States by population
State: Colorado
Country: 🇺🇸 United States (North America)
IANA Timezone: America/Denver
Solar time: clocks run about 1h ahead of the sun
Timezone: MDT
Daylight Saving Time: Yes ✅ (Abbreviation: MDT) (When does Daylight Savings Time end?)
Standard Timezone Abbreviations used in United States: AKST, CST, EST, HST, MST, PST
Daylight Saving Timezone Abbreviations used in United States: AKDT, CDT, EDT, HDT, MDT, PDT
Local time in Boulder runs on a UTC−07:00 offset (America/Denver). The clocks are currently shifted forward for daylight saving time. Day and night are close to even today, with about 12 hours of daylight. Being in the temperate belt, Boulder sees markedly longer summer days and shorter winter ones. Boulder lies high in the uplands, around 1624 m above sea level. Boulder is fairly isolated: even Los Angeles lies some 1327 km off. Boulder is a significant city in the United States, worth timing right for calls and travel.
Boulder gets 12h 11m of daylight today, with sunrise at 06:48 and sunset at 18:59.
Time & Daylight in Boulder
Daylight Hours in Boulder
Boulder gets 12h 11m of daylight today. Sunrise in Boulder is at 06:48 and sunset in Boulder is at 18:59.
Daylight ranges from about 9h 19m near the December solstice to 15h 01m near the June solstice.
Time Difference Between Boulder and Major Cities
Live local time and the difference from Boulder right now.
Other Cities in United States with Local Time
Cities Sharing Boulder's Time Zone (UTC-06:00)
These major cities are at the same UTC offset as Boulder.
Weather in Boulder
Tools to Plan Meetings
Prayer Times in Boulder
| Date | Fajr | Sunrise | Dhuhr | Asr | Maghrib | Isha |
|---|---|---|---|---|---|---|
| Mon, 21 Sep ● | 05:13 | 06:47 | 12:54 | 16:21 | 19:00 | 20:30 |
| Tue, 22 Sep | 05:14 | 06:48 | 12:53 | 16:20 | 18:59 | 20:29 |
| Wed, 23 Sep | 05:16 | 06:49 | 12:53 | 16:18 | 18:57 | 20:27 |
| Thu, 24 Sep | 05:17 | 06:50 | 12:53 | 16:17 | 18:55 | 20:25 |
| Fri, 25 Sep | 05:18 | 06:51 | 12:52 | 16:16 | 18:54 | 20:24 |
| Sat, 26 Sep | 05:19 | 06:52 | 12:52 | 16:15 | 18:52 | 20:22 |
| Sun, 27 Sep | 05:20 | 06:53 | 12:52 | 16:14 | 18:50 | 20:20 |
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Boulder Prayer Times Widget
Show daily prayer times for Boulder on any website
Boulder Weather Widget
Current conditions and 7-day forecast for Boulder
Boulder Sunrise & Sunset Widget
Sunrise, sunset, day length, and twilight times for Boulder
Boulder Moon Phase Widget
Current phase, illumination, and next full/new moon for Boulder
Boulder Countdown Timer Widget
Live event countdown in Boulder local time
14-day Forecast for Boulder
Sunrise & Sunset Times for Boulder
Sunrise
in Boulder
↑
6:48 AM
Sunset
in Boulder
↓
6:59 PM
Day Length
12h 11m
Dawn
in Boulder
6:20 AM
Dusk
in Boulder
7:26 PM
View detailed past and future sunrise, sunset, and twilight times for Boulder. Track daylight hours, sun phases, and more.
Moon Phases & Times for Boulder
Current Phase
Waxing Gibbous
Illumination
75.5%
Next Moonrise
↑
Today, 16:41
Next Moonset
↓
Tomorrow, 02:24
View the detailed moon calendar for Boulder with moonphases, moonrise, and moonset times for any date.
Distances & Clock Changes in Boulder
How Far Is Boulder From Other Major Cities?
| City | Distance | Direction |
|---|---|---|
| Los Angeles | 1,327 km | WSW (244deg) |
| New York | 2,636 km | ENE (78deg) |
| London | 7,533 km | NE (40deg) |
| Paris | 7,854 km | NE (42deg) |
| Moscow | 8,804 km | NNE (20deg) |
| Tokyo | 9,297 km | NW (312deg) |
| Sao Paulo | 9,315 km | SE (128deg) |
| Hong Kong | 11,969 km | NW (322deg) |
When Do the Clocks Change in Boulder?
Boulder next changes its clocks on November 1, 2026, when the clocks fall back by one hour.
Boulder's Antipode: The Opposite Side of the Earth
Dig straight through the Earth from Boulder and you would surface in the open ocean, near 40.0deg S, 74.7deg E.
Frequently Asked Questions about Boulder
What time is it in Boulder right now?
The current local time in Boulder is 09:38 on Monday, September 21, 2026. Boulder follows the America/Denver time zone.
What time zone is Boulder in?
Clocks in Boulder follow the America/Denver IANA time zone (UTC-06:00). It applies to the wider area too and adjusts on its own for daylight saving where that is observed.
How many hours ahead or behind UTC is Boulder?
Is Boulder on daylight saving time right now?
Yes. Daylight saving time is in effect in Boulder as of September 21, 2026.
What time is sunrise and sunset in Boulder today?
In Boulder today the sun rises at 06:48 and sets at 18:59, giving 12h 11m of daylight.
What moon phase is visible over Boulder tonight?
Over Boulder tonight the moon shows a Waxing Gibbous phase at 75.5% illumination.
What is solar time in Boulder?
Solar time follows the Sun's actual position, with solar noon when the Sun is highest in the sky. In Boulder, clocks run about 1h ahead of local solar time, because the official time zone does not exactly match the Sun's position.