Of course, you can! You can use the time system to set conditions for your NPCs. However, this requires you to create the events. Here's a suggestion: create an event sheet for each daily behavior that activates if the time is greater than, for example, '8', and less than '12'. Then, execute whatever you need to do within that timeframe for each behavior
(Keep in mind this needs to be build by yourself because every developer needs are different!)