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a.u. of time
Symbol:  a.u. 
Category:  Time 
SI Equivalent:  2.41888×10-17 s
Dimension
System:  a.u. 
 
Notes
1 a.u. of time = h/2pEh
where h is the Planck constant (6.626069×10-34 J-s) and Eh = 1 hartree (4.3597482×10-18J).
Convert     a.u.  
1 a.u. =
Permeability coefficient
  Symbol Unit Name
2.41888×10-17  kg-m/N-s  kilogram meter per newton per second 
1.6645×10-5  perm-inch (0 °C)  perm-inch (0°C) 
1.65758×10-5  perm-inch (23 °C)  perm-inch (23°C) 
1.6645×10-2  perm-mil (0 °C)  perm-mil (0°C) 
1.65758×10-2  perm-mil (23 °C)  perm-mil (23°C) 
Time
  Symbol Unit Name
2.79963×10-17    blink 
2.79963×10-22  d  day 
2.8073×10-22  d (sider.)  day (sidereal) 
1.99974×10-23    fortnight 
6.71912×10-21  h  hour 
2.57339×106    Jordan's elementary time 
2.41888×10-11  ms  microsecond 
2.41888×10-14  ms  millisecond 
4.03147×10-19  min, mn  minute 
9.33212×10-24    month (30 days) 
1.02469×10-23    month (sidereal) 
9.20428×10-24    month (solar mean) 
9.48046×10-24    month (synodic), lunar month 
2.41888×10-8  ns  nanosecond 
2.41888×10-17  s  second 
2.41888×10-9    shake 
3.99948×10-23  w  week 
7.25665×10-8    wink 
7.66492×10-25  aastr.  year (astronomical), Bessel year 
7.67023×10-25  a, y  year (calendar) 
7.66485×10-25    year (sidereal) 
7.66498×10-25  a, y  year (solar mean) 
7.66514×10-25  atrop.  year (tropical) 
Glossary