Demetrios Matsakis

Demetrios Matsakis is chief scientist for Time Services at the U.S. Naval Observatory (USNO).

He has worked on most aspects of timekeeping, and served as head of the USNO’s Time Service Department for 17 years.

Matsakis received his Ph.D. in physics from the University of California at Berkeley.  

Demetrios Matsakis is chief scientist for Time Services at the U.S. Naval Observatory (USNO).

He has worked on most aspects of timekeeping, and served as head of the USNO’s Time Service Department for 17 years.

Matsakis received his Ph.D. in physics from the University of California at Berkeley.  

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