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second
Symbol:  s 
Category:  Time 
SI Equivalent:  1 s
Dimension
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.
Convert     s  
1 s =
Permeability coefficient
  Symbol Unit Name
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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