Cats spend most of their day sleeping, with an average of 12-16 hours per day for house cats. They are also "snackers" by nature and prefer to eat smaller snacks throughout the day as opposed to two large meals. Cats spend around 1-2 hours on functional activities such as eating and using the litter box. They also spend around 2 hours observing the world around them, usually from a safe spot where they can see but not be seen. Marking territory and exploring takes up about 2 hours of their day, during which they maintain their "kingdom" with olfactory marks and scratches. Cats also spend around 2 hours grooming themselves, which is important for their hygiene and health. Playtime is also important for cats, and they need opportunities to exercise and play to stay fit and healthy.

Here is a breakdown of a typical day for a cat based on the search results:

• Sleep: 12-19 hours, with an average of 12-16 hours for house cats
• Eating and using the litter box: 1-2 hours
• Observing the world around them: 2 hours
• Marking territory and exploring: 2 hours
• Grooming: 2-3 hours
• Playtime: 1 hour
• Socializing with humans: Cats enjoy spending quality time with their owners

Its important to note that every cat is different and may have their own unique routine and preferences.