sleep

Delay for a specified time, pause for an amount of time specified by the sum of the values of the command line arguments

SYNTAX
      sleep [NUMBER[smhd]]...

key:

   s  :  seconds (default)

   m  :  minutes

   h  :  hours

   d  :  days

"I think men talk to women so they can sleep with them and women sleep with men so they can talk to them" - Jay McInerney

Related commands:

nice - Change job scheduling priority
at(1)