Home >  Term: A1 time
A1 time

An atomic-time scale established by the U. S. Naval Observatory, with the origin on 1 January 1958 at zero hours UT2 and with the unit (second) equal to the occurrence of 9,192,631,770 cycles of cesium-generated radiation of specified wavelength at zero field.

0 0

Penulis

  • Sean64
  •  (Platinum) 4053 poin
  • 100% positive feedback
© 2024 CSOFT International, Ltd.