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Time.is

Time in Boulder, Colorado, United States now

 
 
Sunday, 8. March, 2026, week 10
Boulder switches to daylight saving time at 02.00 on Sunday, 8. March. The time is set one hour forward.
Sun: ↑ 07.23 ↓ 19.01 (11h 38m) - More info - Make Boulder time default - Add to favorite locations

Time zone info for Boulder

UTC -7
Mountain Time (MT)
now 3 hours behind New York
Sunday November 2 2025
Latest change: Winter time started
  • Switched to UTC -7 / Mountain Standard Time (MST).
  • The time was set back one hour from 02.00 to 01.00 local time.
Sunday March 8 2026
Next change: Summer time starts
  • Switching to UTC -6 / Mountain Daylight Time (MDT).
  • The time will be set forward one hour from 02.00 to 03.00 local time.

Time difference
from Boulder

Los Angeles
−1 hours		−1 hours
Chicago+1 hours
New York+3 hours
Toronto+3 hours
São Paulo+4 hours
London+7 hours
UTC+7 hours
Lagos+8 hours
Paris+8 hours
Zurich+8 hours
Cairo+9 hours
Johannesburg+9 hours
Istanbul+10 hours
Moscow+10 hours
Dubai+11 hours
Mumbai+12.5 hours
Hong Kong+15 hours
Shanghai+15 hours
Singapore+15 hours
Tokyo+16 hours
Sydney+18 hours
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Sunrise, sunset, day length and solar time for Boulder

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