Report - NIST Time and Frequency Bulletin: January · 2020. 3. 20. · UT1-UTC(NIST) (±5 ms) UTC(USNO, MC) - UTC(NIST) (±20 ns) 5 . 58822 -170.68 ms-3.5 ns: 12 . 58829 -172.61 ms-3.0 ns:

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