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year (solar mean)
Symbol:  a, y 
Category:  Time 
SI Equivalent:  3.15576×107 s
Dimension
 
Notes
365.25 days.
Convert     a, y  
1 a, y =
Permeability coefficient
  Symbol Unit Name
3.15576×107  kg-m/N-s  kilogram meter per newton per second 
2.17156×1019  perm-inch (0 °C)  perm-inch (0°C) 
2.16253×1019  perm-inch (23 °C)  perm-inch (23°C) 
2.17156×1022  perm-mil (0 °C)  perm-mil (0°C) 
2.16253×1022  perm-mil (23 °C)  perm-mil (23°C) 
Time
  Symbol Unit Name
1.30463×1024  a.u.  a.u. of time 
3.6525×107    blink 
365.25  d  day 
366.25  d (sider.)  day (sidereal) 
26.0893    fortnight 
8766  h  hour 
3.35733×1030    Jordan's elementary time 
3.15576×1013  ms  microsecond 
3.15576×1010  ms  millisecond 
5.2596×105  min, mn  minute 
12.175    month (30 days) 
13.3685    month (sidereal) 
12.0082    month (solar mean) 
12.3685    month (synodic), lunar month 
3.15576×1016  ns  nanosecond 
3.15576×107  s  second 
3.15576×1015    shake 
52.1786  w  week 
9.46728×1016    wink 
0.999991  aastr.  year (astronomical), Bessel year 
1.00068  a, y  year (calendar) 
0.999983    year (sidereal) 
1.00002  atrop.  year (tropical) 
Glossary