According to http://law.onecle.com/california/penal/1533.html http://law.onecle.com/california/penal/1533.html: "Upon a showing of good cause, the magistrate m

According to http://law.onecle.com/california/penal/1533.html http://law.onecle.com/california/penal/1533.html: "Upon a showing of good cause, the magistrate may, in his or her discretion, insert a direction in a search warrant that it may be served at any time of the day or night. In the absence of such a direction, the warrant shall be served only between the hours of 7 a.m. and 10 p.m."