A court shall not be opened on Sunday and judicial business shall not be transacted on Sunday, except to: 1. Give instructions to a jury then deliberating on its verdict. 2. Receive a verdict or discharge a jury. 3. Exercise the powers of a magistrate in a criminal proceeding. 4. Perform other acts as provided by law. 83 Acts, ch 186, §1602, 10201 Analogous or related provisions, §626.6 , 639.5 , 643.3 , and 667.3