Current local time in Boulder, CO
Thu, 02 Oct 2025 01:40:10 -0600
| 28 September 2025 | |
|---|---|
| Sunrise: | 06:55:27 |
| Sunset: | 18:48:32 |
| Transit: | 12:51:59 |
| Length of daytime: |
11h 53m 05s |
| Twilight | Begins | Ends | Length |
|---|---|---|---|
| Civil | 06:28:31 | 19:15:27 | 12h 46m 56s |
| Nautical | 05:57:04 | 19:46:55 | 13h 49m 51s |
| Astronomical | 05:25:14 | 20:18:45 | 14h 53m 31s |
| City | Region | Country |
|---|---|---|
| Boulder | Colorado | United States |
| Coordinates | Latitude | Longitude |
| DMS: | 40° 02′ 53″ N | 105° 23′ 02″ W |
| Decimal: | 40.0481 | -105.384 |
| Timezone: | ||
| UTC offset: UTC-6:00 | ||
| Daylight Saving Time: Yes | ||
| MDT Mountain Daylight Time (North America) | ||
| America/Denver | ||
| Rise | Set | Length | |
|---|---|---|---|
| Today | 06:59:22 | 18:42:01 | 11h 42m 39s |
| September 27, 2025 | 06:54:28 | 18:50:11 | 11h 55m 43s |
| September 29, 2025 | 06:56:25 | 18:46:54 | 11h 50m 29s |
Neighborhood of Boulder, CO
Lyons, CO, Niwot, CO, Arvada, CO, Jamestown, CO, Golden, CO, Longmont, CO, Eldorado Springs, CO, Pinecliffe, CO, Black Hawk, CO, Louisville, COLocations in United States
New York, NY, Houston, TX, Phoenix, AZ, Jacksonville, FL, Austin, TX, El Paso, TX, Fort Worth, TX, Omaha, NE, Minneapolis, MN, Saint Louis, MOOther Cities
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