United States
Time now in Jefferson County
Monday, 24 August 2026
Sunrise 06:21Sunset 07:45Time zone UTC −6
Time zone
America/Denver
UTC offset
UTC −6
Daylight saving
In effect now
Population
582,910
Sunrise
06:21
Sunset
07:45
Day length
13h 23m
Coordinates
39.59, -105.25
Time difference from Jefferson County
Hours ahead (right) or behind (left) Jefferson County right now.
Jefferson County on the map
About the time in Jefferson County
Around 582,910 people live in Jefferson County, and all of them keep the same civil time, so the reading above applies to the whole urban area — not just the city centre.
Jefferson County runs on America/Denver, which puts the city UTC −6 from Coordinated Universal Time right now. The clock at the top of this page is not copied from your device: it is anchored to our reference timestamp and re-rendered every second against the IANA time zone database, so it stays right even when a laptop or phone has quietly drifted.
The zone identifier America/Denver is the value you want in code, calendars and travel systems. Abbreviations change with the season, but America/Denver keeps pointing at Denver time whatever the date, which is why every timestamp on this page is built from it.
Frequently asked questions about time in Jefferson County
- Does Jefferson County change its clocks for daylight saving?
- Yes, and it is in effect now. Clocks change again on 1 November 2026.
- When do the sun rise and set in Jefferson County today?
- Sunrise is at 06:21 and sunset at 07:45, giving 13h 23m of daylight.
- What are normal business hours in Jefferson County in UTC?
- A 09:00–17:00 working day in Jefferson County runs from 15:00–23:00 UTC today.
- What time is it in Jefferson County right now?
- The live clock above shows the current time in Jefferson County, updating every second from America/Denver (UTC −6).
87,523 places in United States
Other cities in the same country, sized by population.