Home   Time Zones   World   USA   Boulder
Flag for USA

Time Zone in Boulder, Colorado, USA

123691245781011
11:52:12 am MDT

Sunday, May 4, 2025

Fullscreen
Current: MDT — Mountain Daylight Time
Next Change: MST — Mountain Standard Time
Current Offset: UTC/GMT -6 hours
Difference: 2 hours behind Columbus
Location of BoulderLocation

2025 Time Zones - Boulder

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

The graph above illustrates clock changes in Boulder during 2025.

Time Changes in Boulder Over the Years

Daylight Saving Time (DST) changes do not necessarily occur on the same date every year.

YearDate & TimeAbbreviationTime ChangeOffset After
2024Sun, Mar 10 at 2:00 amMSTMDT+1 hour (DST start)UTC-6h
 Sun, Nov 3 at 2:00 amMDTMST-1 hour (DST end)UTC-7h
2025Sun, Mar 9 at 2:00 amMSTMDT+1 hour (DST start)UTC-6h
 Sun, Nov 2 at 2:00 amMDTMST-1 hour (DST end)UTC-7h
2026Sun, Mar 8 at 2:00 amMSTMDT+1 hour (DST start)UTC-6h
 Sun, Nov 1 at 2:00 amMDTMST-1 hour (DST end)UTC-7h
2027Sun, Mar 14 at 2:00 amMSTMDT+1 hour (DST start)UTC-6h
 Sun, Nov 7 at 2:00 amMDTMST-1 hour (DST end)UTC-7h
2028Sun, Mar 12 at 2:00 amMSTMDT+1 hour (DST start)UTC-6h
 Sun, Nov 5 at 2:00 amMDTMST-1 hour (DST end)UTC-7h
* All times are local Boulder time. Next time change is highlighted.

Data for the years before 1970 is not available for Boulder, however, we have earlier time zone history for Denver available.

More Information

Time Zone Map

Try Our Interactive Time Zone Map

Time Zone Tools

Boulder
USA
11:5212am
Sunday, May 4, 2025