Current time in Boulder
Boulder — exact time with seconds online. Boulder — transition to winter and summer time.
PM
2025
January
Tu
14
05
35
10
40
3
9
15
45
20
50
25
55
6
12
30
60
Information
| Country | United States |
| Population | ~97 385 |
| Currency | USD — US Dollar |
| Country phone code | +1 |
| GPS coordinates (latitude, longitude) | 40.012729,-105.259689 |
Boulder — switching to winter and summer time
| Time zone | UTC-7:00 |
| Changeover to summer time UTC-6:00 | 09.03.2025 01:00:00 |
| Changeover to winter time UTC-7:00 | 02.11.2025 03:00:00 |
| Sunrise | 07:19:35 |
| Sunset | 17:00:58 |
| Day length | 09:41:23 |
| Sun at its zenith | 12:10:17 |
| Civil dawn | 06:51:24 |
| Civil Twilight | 17:29:10 |
| Nautical dawn | 06:18:00 |
| Nautical Twilight | 18:02:33 |
| Astronomical dawn | 05:45:31 |
| Astronomical Twilight | 18:35:02 |