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Time.is

Time in Boulder, Colorado, United States now

20.10.49

Tuesday, 10. March, 2026, week 11

Boulder switched to daylight saving time at 02.00 on Sunday, 8. March. The time was set one hour forward.
Sun: ↑ 07.20 ↓ 19.03 (11h 43m) - More info - Make Boulder time default - Add to favorite locations

Time zone info for Boulder

UTC -6

Mountain Time (MT)
now 2 hours behind New York

From 1 November 2026: UTC -7 / Mountain Standard Time (MST)
The time in Boulder is normally two hours behind the time in New York, but because these time zones don't share the same start and end times for daylight saving time, the time in Boulder can for a short while be 1 or 3 hours behind the time in New York.
The IANA time zone identifier for Boulder is America/Denver.

Sunday March 8 2026

Latest change: Summer time started

Switched to UTC -6 / Mountain Daylight Time (MDT).
The time was set forward one hour from 02.00 to 03.00 local time.

Sunday November 1 2026

Next change: Winter time starts

Switching to UTC -7 / Mountain Standard Time (MST).
The time will be set back one hour from 02.00 to 01.00 local time.

Time difference
from Boulder

Los Angeles	−1 hours	−1 hours
Chicago	+1 hours
New York	+2 hours
Toronto	+2 hours
São Paulo	+3 hours
London	+6 hours
UTC	+6 hours
Lagos	+7 hours
Paris	+7 hours
Zurich	+7 hours
Cairo	+8 hours
Johannesburg	+8 hours
Istanbul	+9 hours
Moscow	+9 hours
Dubai	+10 hours
Mumbai	+11.5 hours
Hong Kong	+14 hours
Shanghai	+14 hours
Singapore	+14 hours
Tokyo	+15 hours
Sydney	+17 hours

Compare other time zones

Sunrise, sunset, day length and solar time for Boulder

Sunrise: 07.20
Sunset: 19.03
Day length: 11h 43m
Solar noon: 13.11
The current local time in Boulder is 71 minutes ahead of apparent solar time.

Boulder on the map

Location: Colorado, United States
Latitude: 40.01. Longitude: -105.27
Population: 107,000
Elevation: 1,620 m

Open Boulder in Google Maps

Best restaurants in Boulder

#1 Frasca Food and Wine - Italian and wine bars food
#2 The Boulder Dushanbe Teahouse - Asian and eastern european food
#3 Oak at Fourteenth - American and new american food

Find best places to eat in Boulder

Restaurants in Boulder