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Description:

Returns false if argument is correct time and true if argument is blank

Parameters:
wtime	Time for comparision with blank time

function Boolean TimeInRangeUserCheck(Time tt,Time st,Time et)
begin
  Boolean res;
  
  res = true;
  if (nonblanktime(st)) then begin
    if (tt<=st) then begin res = false; end;
  end;
  if (nonblanktime(et)) then begin
    if (tt>=et) then begin res = false; end;
  end;
  if (blanktime(tt)) then begin
    res = true;
  end;
  TimeInRangeUserCheck = res;
  return;
end;

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