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Current time in Boulder

MAYBESunday, 1 November 2026 · MST · UTC−7

Boulder is 2 hours behind New York. Boulder–New York overlap

A workday in Boulder

Boulder local hours
PING · 09–18 local MAYBE · 07–09, 18–21 NOT NOW · 21–07

Boulder time zone facts

America/Denver zone
Time zone
MST · UTC−7Mountain Standard Time
Daylight saving
Starts 14 March 2027UTC−7 → UTC−6
Sunrise · sunset
06:31 · 16:5710h 27m of daylight · by month
Next public holiday
Veterans Day2026-11-11 · all United States holidays
Coordinates
40.02, -105.27United States
Same clock as
Denver10 other listed cities

Boulder is in United States and keeps Mountain Standard Time (America/Denver), UTC−7. The clock moves for daylight saving, so the offset changes during the year. Treat Boulder as reachable 09:00–18:00 local on a weekday that isn’t a public holiday.

Boulder against the world

Plan a meeting
PING · 09–18 local MAYBE · 07–09, 18–21 NOT NOW · 21–07Outlined: everyone can be pinged

Nearby clocks

All of United States
DenverUnited StatesEl PasoUnited StatesAlbuquerqueUnited StatesColorado SpringsUnited StatesSalt Lake CityUnited StatesSanta FeUnited StatesAuroraUnited StatesFort CollinsUnited StatesLakewoodUnited StatesWest Valley CityUnited States

Time differences

All pairs
Boulder – New York+2hBoulder – Los Angeles−1hBoulder – London+7hBoulder – Berlin+8hBoulder – Dubai+11hBoulder – Mumbai+12:30hMST to EST converterconvertMST to PST converterconvertMST to GMT converterconvertMST to CET converterconvertMST to IST converterconvert

Boulder time questions

What time zone is Boulder in?

Boulder uses Mountain Standard Time (MST), UTC−7. The IANA zone is America/Denver. Boulder observes daylight saving time.

What is the time difference between Boulder and New York?

Boulder is 2 hours behind New York. When it is 09:00 in New York, it is 07:00 in Boulder.

When is it okay to message someone in Boulder?

PING is 09:00–18:00 Boulder time on a weekday that isn’t a public holiday. Avoid 21:00–07:00 local (NOT NOW). Early mornings, evenings and weekends are MAYBE.

What is the time difference between Boulder and Los Angeles?

Boulder is 1 hour ahead of Los Angeles. 09:00 in Los Angeles is 10:00 in Boulder.

When do the clocks change in Boulder?

The next change is on Sunday, 14 March 2027, when Boulder moves from UTC−7 to UTC−6 (clocks go forward 1 hour).

What time is sunrise and sunset in Boulder today?

Sunrise is at 06:31 and sunset at 16:57, giving 10h 27m of daylight.

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