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Time Zone in Boulder, Colorado, USA

12:08:02 am MDT

Tuesday, March 19, 2024

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

2024 Time Zones - Boulder

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

The graph above illustrates clock changes in Boulder during 2024.

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
2023Sun, 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
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
* 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.

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Boulder
USA
12:0802am
Tuesday, March 19, 2024