%O2_TIME0 Convert GMT time string to calendar time
%    O2_TIME0( timestr ) returns seconds since 00:00:00 UTC, January 1,
%    1970, given a string of the format 'yy/mm/dd hh:mm:ss'.  The year must
%    be specified as two digits.  Implemented as MEX file using UNIX system
%    call mktime.

%----------------------------------------------------------------------
%                      Copyright (C) 1994-1996
%               Massachussetts Institute of Technology
%              Sea Grant Underwater Vehicles Laboratory
%----------------------------------------------------------------------
%     $Revision: 1.1 $                  $Date: 2000/01/10 19:08:22 $
%----------------------------------------------------------------------
