You can set up a daily reminder email to be sent (11am) to users in the Diary to fill out the Diary notes in the Logs. The email will send out a link that will direct the user to the Diary Log.
Notifications will also be sent out to users who have access to the Diary about Blog and Log entries that have been added.
In the Manage Access section Turn on the notifications icon in the section of the Diary you want the user to be reminded about.