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year (calendar)
Symbol:  a, y 
Category:  Time 
SI Equivalent:  3.1536×107 s
Dimension
 
Notes
1 year (calendar) = 365 days
Convert     a, y  
1 a, y =
Permeability coefficient
  Symbol Unit Name
3.1536×107  kg-m/N-s  kilogram meter per newton per second 
2.17008×1019  perm-inch (0 °C)  perm-inch (0°C) 
2.16105×1019  perm-inch (23 °C)  perm-inch (23°C) 
2.17008×1022  perm-mil (0 °C)  perm-mil (0°C) 
2.16105×1022  perm-mil (23 °C)  perm-mil (23°C) 
Time
  Symbol Unit Name
1.30374×1024  a.u.  a.u. of time 
3.65×107    blink 
365  d  day 
366  d (sider.)  day (sidereal) 
26.0714    fortnight 
8760  h  hour 
3.35504×1030    Jordan's elementary time 
3.1536×1013  ms  microsecond 
3.1536×1010  ms  millisecond 
5.256×105  min, mn  minute 
12.1667    month (30 days) 
13.3594    month (sidereal) 
12    month (solar mean) 
12.3601    month (synodic), lunar month 
3.1536×1016  ns  nanosecond 
3.1536×107  s  second 
3.1536×1015    shake 
52.1429  w  week 
9.46081×1016    wink 
0.999306  aastr.  year (astronomical), Bessel year 
0.999297    year (sidereal) 
0.999316  a, y  year (solar mean) 
0.999338  atrop.  year (tropical) 
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