(1) A search warrant may be executed by day, but shall not be executed
by night unless the person issuing the warrant, by the warrant, authorises its
execution by night.
(2) In this section--
"by day" means during the period between 6 am and 9 pm on any day.
"by night" means during the period between 9 pm on any day and 6 am on the
following day.