function jed = epoch_to_jed_byzantine ( )

%*****************************************************************************80
%
%% epoch_to_jed_byzantine() returns the epoch of the Byzantine calendar as a JED.
%
%  Discussion:
%
%    The Byzantine calendar has the epoch 1 September 5509 BC.
%
%  Licensing:
%
%    This code is distributed under the MIT license.
%
%  Modified:
%
%    12 March 2021
%
%  Author:
%
%    John Burkardt
%
%  Output:
%
%    real JED, the Julian Ephemeris Date of the epoch.
%
  jed = -290495.5;

  return
end
