To the left of your playlist, click on " Planning ":
On the calendar, click on the day you want your playlist to start playing.
Provide a start and end date for the broadcast.
In the "Recurrence" drop-down list, select the recurrence you wish to assign to this playlist.
Click on "Add".
Activate your planning via the button "Activation of planning":
Your playlist is now scheduled and will be played at the times and dates you set.