The times of holding the Supreme Court, the court of appeals and the district courts must be as fixed by law. The terms of the Supreme Court must be held at the seat of government unless the Legislature otherwise provides by law, except that the Supreme Court may hear oral argument at other places in the State. The terms of the court of appeals must be held at the place provided by law. The terms of the district courts must be held at the county seats of their respective counties unless the Legislature otherwise provides by law.