Boulder in numbers
- Coordinates
- 40.0150, -105.2710
- Population
- 106 803
- Region
- Colorado
- Country
- United States, North America
- Capital
- Washington, D.C. — 2417 km away
- Same name
- 7 more places in the world share this name
What time is it in Boulder, Colorado, United States
Right now in Boulder, Colorado, United States the local time is the one shown here, in the America/Denver zone (−6).
Boulder, United States
Friday, 4 September 2026
UTC−6 · America/Denver
Local time in Boulder
UTC−6 · daylight saving time is active
Boulder keeps America/Denver time.
The sun today
Sunrise 06:33 Solar noon 13:01 Sunset 19:30 Daylight 12 h 57 min Night 11 h 03 min Civil twilight 06:05 – 19:58
Weather in Boulder right now
Loading the current weather…
Weather data by Open-Meteo, updated every 30 minutes.
Boulder and its neighbours
Postal codes
- 59632
- 80301
- 80302
- 80303
- 80304
- 80305
- 80306
- 80307
- 80308
- 80309
- 80310
- 80314
Postal codes come from the free GeoNames dataset. Where a code is listed with a distance, it belongs to a nearby settlement — GeoNames spells that name differently from ours.
Largest cities in Colorado
- Denver 729 019
- Colorado Springs 456 568
- Aurora 359 407
- Fort Collins 170 924
- Lakewood 152 597
- Thornton 133 451
Other places named Boulder
- Boulder Western Australia, Australia
- Boulder Montana, United States
- Boulder Wyoming, United States
- Boulder Idaho, United States
- Boulder Illinois, United States
Same time zone — America/Denver
Nearby places
- Ara — 2.1 km
- Seven Hills — 3.7 km
- Orodell — 4.6 km
- Valmont — 5.2 km
- Boulder Junction — 5.3 km
- Pine Brook Hill — 5.4 km
Time and daylight in Boulder
Boulder has 12 postal codes in total.
The zone applied in Boulder is America/Denver with offset UTC−6. Whether clocks shift for daylight saving: Yes.
The sun shows itself over Boulder at 06:33 and sets at 19:30 today. That is 12 h 57 min of light.
Seven Hills and Valmont, both nearby, hold the same time as Boulder.
Questions and answers
- Which time zone determines the local time in Boulder?
- Local time in Boulder is determined by America/Denver, with an offset of −6.
- Does the time in Boulder vary with the season?
- Daylight saving time in Boulder: Yes.
- Is there a set time for sunrise in Boulder?
- Today the sun rises at 06:33.