Current local time in Boulder, CO
Thu, 20 Nov 2025 20:25:44 -0700
| 20 November 2025 | |
|---|---|
| Sunrise: | 06:53:06 |
| Sunset: | 16:41:21 |
| Transit: | 11:47:14 |
| Length of daytime: |
9h 48m 15s |
| Twilight | Begins | Ends | Length |
|---|---|---|---|
| Civil | 06:23:48 | 17:10:39 | 10h 46m 51s |
| Nautical | 05:50:43 | 17:43:44 | 11h 53m 01s |
| Astronomical | 05:18:26 | 18:16:01 | 12h 57m 35s |
| City | Region | Country |
|---|---|---|
| Boulder | Colorado | United States |
| Coordinates | Latitude | Longitude |
| DMS: | 40° 05′ 16″ N | 105° 22′ 23″ W |
| Decimal: | 40.0878 | -105.373 |
| Timezone: | ||
| UTC offset: UTC-7:00 | ||
| Daylight Saving Time: No | ||
| MST Mountain Standard Time (North America) | ||
| America/Denver | ||
| Rise | Set | Length | |
|---|---|---|---|
| Yesterday | 06:51:59 | 16:41:59 | 9h 50m 00s |
| Tomorrow | 06:54:13 | 16:40:44 | 9h 46m 31s |
Neighborhood of Boulder, CO
Louisville, CO, Ward, CO, Hygiene, CO, Allenspark, CO, Nederland, CO, Rollinsville, CO, Eldorado Springs, CO, Pinecliffe, CO, Golden, CO, Arvada, COLocations in United States
Detroit, MI, Milwaukee, WI, Boston, MA, Fort Worth, TX, Cleveland, OH, Long Beach, CA, Atlanta, GA, Sacramento, CA, Honolulu, HI, Saint Louis, MOOther Cities
São Paulo,Brazil; Delhi,India; Wuhan,China; Chengdu,China; Ahmedabad,India; Taegu,Korea Republic of; Gîza,Egypt; Cali,Colombia; Mashhad,Iran Islamic Republic of; Dar Es Salaam,Tanzania United Republic of; Curitiba,Brazil; Guiyang,China; Chittagong,Bangladesh;

