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second
 Symbol: s Category: Time SI Equivalent: 1 s Dimension: T System: SI Notes The fundamental unit of time in the SI system. It is defined as 9,192,631,770 cycles of the radiation associated with the transition between the two hyperfine levels of the ground state of the cesium-133 atom.
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1 s =
 Permeability coefficient Symbol Unit Name 1 kg-m/N-s kilogram meter per newton per second 6.88127×1011 perm-inch (0 °C) perm-inch (0°C) 6.85265×1011 perm-inch (23 °C) perm-inch (23°C) 6.88127×1014 perm-mil (0 °C) perm-mil (0°C) 6.85265×1014 perm-mil (23 °C) perm-mil (23°C) Time Symbol Unit Name 4.13414×1016 a.u. a.u. of time 1.15741 blink 1.15741×10-5 d day 1.16058×10-5 d (sider.) day (sidereal) 8.2672×10-7 fortnight 2.77778×10-4 h hour 1.06388×1023 Jordan's elementary time 1×106 ms microsecond 1000 ms millisecond 1.66667×10-2 min, mn minute 3.85802×10-7 month (30 days) 4.23623×10-7 month (sidereal) 3.80518×10-7 month (solar mean) 3.91936×10-7 month (synodic), lunar month 1×109 ns nanosecond 1×108 shake 1.65344×10-6 w week 3×109 wink 3.16878×10-8 aastr. year (astronomical), Bessel year 3.17098×10-8 a, y year (calendar) 3.16875×10-8 year (sidereal) 3.16881×10-8 a, y year (solar mean) 3.16888×10-8 atrop. year (tropical)
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