[time-nuts] How many seconds in a year?

[Neville Michie]

Hi,
the GPS system obviously counts seconds, and weeks.  When the solar  
year develops a  phase
difference of more than half a second the UTC crowd  consider a leap  
second, so what is the current
rotational velocity of the Earth, either WRT the Sun or the stars? In  
seconds.
I could find many answers on Google but none that seemed good enough  
to set your clock by.
By clock I just mean a rubidium clock that is harmonised to the GPS  
system.
cheers, Neville Michie