Updated Mar 2026

Current Time in Boulder, United States

Name: Boulder
Address: Boulder, United States

Check the current local time in Boulder, United States. Boulder uses the America/Denver time zone, with MST (UTC -7:00) during standard time and MDT (UTC -6:00) during daylight saving time.

Boulder, United States — Live Clock

10:06:41 PM

MDT Live timezone

Tuesday, June 23, 2026

DST ends: November 1, 2026

Boulder Time Zone

Time Zone

America/Denver

Boulder, United States

Current zone: MDT

Source: IANA Time Zone Database

Standard Time

MST

UTC -7:00

Used outside daylight saving time

Daylight Time

MDT

UTC -6:00

Observed during daylight saving time

Next DST Change

DST ends

November 1, 2026

Based on Second Sunday in March / First Sunday in November

About Boulder Time: MST & MDT

Check the live current time in Boulder, United States. Boulder follows MST (UTC -7:00) and does not observe daylight saving time. Use this page to confirm local business hours, travel timing, and call scheduling without timezone mistakes.

Boulder vs Major Cities

UTC UTC -6:00

--:-- 6 hours behind

London UTC +1:00

--:-- 7 hours behind

New York UTC -4:00

--:-- 2 hours behind

Singapore UTC +8:00

--:-- 14 hours behind

Dubai UTC +4:00

--:-- 10 hours behind

Tokyo UTC +9:00

--:-- 15 hours behind

Mumbai UTC +5:30

--:-- 11 hours and 30 minutes behind

Daylight Saving Time

Clocks change in Boulder in 130 days

DST ends on November 1, 2026. Clocks fall back — sunrise and sunset shift one hour earlier in Boulder.

Other Cities in America/Denver

These cities share the same time zone as Boulder — when it's 10:06:41 PM here, it's the same local time there.

Denver United States El Paso United States Albuquerque United States Colorado Springs United States Boise United States Salt Lake City United States Fort Collins United States Santa Fe United States Park City United States Aspen United States

Other Cities in United States

Major cities in United States — some may be in a different time zone than Boulder if the country spans multiple zones.

New York EST Los Angeles PST Chicago CST Las Vegas PST Honolulu HST Houston CST Washington EST Yosemite PST Phoenix MST Orlando EST Lake Tahoe PST Miami EST

Browse all cities in United States

Need to Schedule a Call to Boulder?

Find the perfect overlap time between your timezone and Boulder. Our calculator shows when business hours align.

Calculate Best Calling Time

Reviewed by iFormat Time Tools Team Last updated Mar 15, 2026

Time zone data verified against the IANA Time Zone Database. DST rules, UTC offsets, and city assignments are checked against IANA tzdata and updated whenever DST policy changes.

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Frequently Asked Questions

Everything you need to know about Boulder time

What time is it in Boulder right now?

The live clock at the top of this page shows the exact current local time in Boulder, United States, updated every second. Right now, Boulder is on MDT with a UTC offset of UTC -6:00. The time updates automatically — no need to refresh the page.

What timezone is Boulder in?

Boulder uses the America/Denver timezone. Standard time is MST (UTC -7:00). During daylight saving time it switches to MDT (UTC -6:00). Currently Boulder is on MDT (UTC -6:00). The live clock above reflects whichever timezone is active right now.

How many hours ahead or behind is Boulder?

Boulder is currently UTC -6:00 from UTC. This offset can shift by one hour when daylight saving time starts or ends — always check the live clock above for the current difference.

Does Boulder observe daylight saving time?

Yes. Boulder observes daylight saving time, switching between MST (UTC -7:00) and MDT (UTC -6:00) each year. Clocks advance on Second Sunday in March and fall back on First Sunday in November. Right now Boulder is using MDT.

Is Boulder on MST or MDT right now?

Right now Boulder is using MDT (UTC -6:00). It switches to MDT in summer and back to MST in winter. The timezone badge in the live clock above updates automatically when clocks change — no need to check a calendar.

What is the best time to call Boulder from New York?

The best call window from New York to Boulder depends on the current offset. Boulder is currently UTC -6:00 from UTC. Aim for a time when both cities are comfortably within 9:00 AM–5:00 PM — use the time difference table on this page to find the current gap.