NIST promotes U.S. innovation and industrial competitiveness by advancing measurement science, standards, and technology in ways that enhance economic security and improve our …

1 day ago · Exact time now, time zone, time difference, sunrise/sunset time and key facts for United States.

USA time zones and time zone map with current time in each state.

1 day ago · Check the current time in United States and time zone information, the UTC offset and daylight saving time dates in 2025.

The Time and Frequency Division maintains the standard for frequency and time interval for the United States, provides official time to the United States, and carries out a broad program of …

2 days ago · This interactive US time zones map displays all time zones across the United States and its territories. Hover over any state to see its time zone information and current UTC offset.

1 day ago · United States timezone information and current time.About U.S. Time Zones The United States uses nine standard time zones. From east to west, they are: Eastern, Central, …

Find current local time in any US state, city, or territory. Live clock system with time zone comparison and conversion tools for all American time zones.

Official UTC (NIST) Timeconnecting Time Zone Information

NIST, in coordination with the U.S. Naval Observatory, provides official time for the United States. NIST builds and operates the country’s most accurate atomic clocks, which help set the global …