DST Starts
Sunday, March 8, 2026
1:59 AM
UTC -07:00 → UTC -06:00
Daylight Saving Time in Boulder
Check when daylight saving time starts and ends in Boulder, when the clocks change, and how the local UTC offset changes during the year.
2026 DST
Boulder, United States
America/Denver
DST Ends
Sunday, November 1, 2026
1:59 AM
UTC -06:00 → UTC -07:00
Daylight Saving Time in Boulder in 2026
Daylight Saving Time Starts
The clock change occurs on Sunday, March 8, 2026.
1:59 AM
UTC -07:00UTC -06:00
Daylight Saving Time Ends
The clock change occurs on Sunday, November 1, 2026.
1:59 AM
UTC -06:00UTC -07:00
DST Dates for Boulder by Year
| Year | DST Starts | DST Ends |
|---|---|---|
| 2023 | Sunday, March 12, 2023 1:59 AM | Sunday, November 5, 2023 1:59 AM |
| 2024 | Sunday, March 10, 2024 1:59 AM | Sunday, November 3, 2024 1:59 AM |
| 2025 | Sunday, March 9, 2025 1:59 AM | Sunday, November 2, 2025 1:59 AM |
| 2026 | Sunday, March 8, 2026 1:59 AM | Sunday, November 1, 2026 1:59 AM |
| 2027 | Sunday, March 14, 2027 1:59 AM | Sunday, November 7, 2027 1:59 AM |
| 2028 | Sunday, March 12, 2028 1:59 AM | Sunday, November 5, 2028 1:59 AM |
| 2029 | Sunday, March 11, 2029 1:59 AM | Sunday, November 4, 2029 1:59 AM |
Does Boulder Use Daylight Saving Time?
Boulder has seasonal clock changes in 2026. Its UTC offset changes during the year according to the America/Denver time zone data.
Boulder Time Zone
The IANA time zone identifier used for Boulder is America/Denver.
Daylight Saving Time in Boulder FAQ
Does Boulder observe daylight saving time?
Boulder has seasonal clock changes in 2026 according to the America/Denver time zone data.
When does daylight saving time start in Boulder in 2026?
Daylight saving time starts in Boulder on Sunday, March 8, 2026.
When does daylight saving time end in Boulder in 2026?
Daylight saving time ends in Boulder on Sunday, November 1, 2026.
What time zone is Boulder in?
Boulder uses the IANA time zone identifier America/Denver.
Do the clocks change in Boulder in 2026?
Yes. Boulder has seasonal clock changes in 2026.
Daylight Saving Time in Other Cities
Compare daylight saving time dates, clock changes and time zones in other cities.
New York
United States
America/New_York
Los Angeles
United States
America/Los_Angeles
Chicago
United States
America/Chicago
Houston
United States
America/Chicago
Phoenix
United States
America/Phoenix
Philadelphia
United States
America/New_York
San Antonio
United States
America/Chicago
San Diego
United States
America/Los_Angeles
Dallas
United States
America/Chicago