Time
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About Time
The National Institute of Standards and Technology (NIST) provides official U.S. time and promotes innovation through measurement science and standards. This government site ensures secure access to accurate time information and related resources.
Access official U.S. time and measurement standards.
What You Can Do
- View current official U.S. time
- Explore time zones across the U.S.
- Learn about measurement standards
- Access secure government resources
Frequently Asked Questions
What is the purpose of NIST?
NIST promotes U.S. innovation and industrial competitiveness by advancing measurement science and standards.
How can I check the official U.S. time?
You can view the current official U.S. time directly on the NIST website.
Is the information on this site secure?
Yes, the site uses HTTPS to ensure that your connection is secure and any information provided is encrypted.
What time zones does NIST provide information for?
NIST provides information for all U.S. time zones, including non-contiguous territories.
How does NIST contribute to economic security?
NIST enhances economic security by developing measurement standards that improve quality of life and industrial competitiveness.