The equation of time is not ignored by the Long Now clock. In one of
their FAQs they state:
The clock is projected to be accurate to within one day every 20,000
years, but just in case it isn't, a solar synchronizer will correct
the time shown on the clockface. A lens on top of the clock
Dear colleagues,
You may be interested to know that the 3-D cam for the EoT mechanism (looking
like a piece of modern sculpture) was on show at the 2008 BSS Conference at
Latimer. A photograph of it is in the report of the conference in the BSS
Bulletin, 20(ii), June 2008.
Regards,