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A Place in Time: NIST and Timekeeping in the Semiconductor Age

Word "NIST" across the middle. Above the NIST: EST. 1901. In a circle around the NIST: CELEBRATING 125 YEARS

Time is a quiet-yet-critical utility that keeps our nation in sync — from GPS navigation and telecommunications to financial networks and scientific discovery. For more than a century, NIST has played a key role in timekeeping for the United States and around the world while also advancing the science of timekeeping itself. Now, NIST scientists are working to shrink the devices that measure time by manipulating light at the nanoscale. Hear from one such researcher, Jordan Stone, on how integrated photonics — the ability to generate and manipulate light on semiconductor chips — is paving the way for next-generation clocks, sensors, and quantum technologies.


Throughout the year, NIST will host lectures, tours, and special programs on our campus and partner with local organizations across the region. We encourage you to stay connected as we celebrate 125 years of service to the American public by visiting the dedicated NIST 125th anniversary webpage.

Visitor Access Requirement:

  • For US Permanent Residents: Please have your valid/non-expired green card for photo identification.*
  • For US Citizens: Please have your valid/non-expired state-issued driver's license. NIST will only accept a REAL ID-compliant form of identification. Visitors with state-issued identification must now present a REAL ID or a different form of government-issued photo identification, such as: a valid/non-expired passport, passport card, DOD's Common Access Card (CAC), Veterans ID, Federal Agency HSPD-12 IDs, and Military Dependents ID.*

*Use of apps, physical photocopies, and/or digital screenshots of your ID, Passport or Green card will not be accepted. 

Failure to show proper valid and compliant/non-expired photo identification upon check-in will result in denied entry into the facility.

For more information please visit our Campus Access and Security page.

Created February 19, 2026, Updated February 27, 2026
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