1. A search warrant must be executed not more than ten days after the date of issuance and it must thereafter be returned to the court without unnecessary delay.

2. A search warrant may be executed on any day of the week. It may be executed only between the hours of 6:00 A.M. and 9:00 P.M., unless the warrant expressly authorizes execution thereof at any time of the day or night, as provided in subdivision five of section 690.45.