My boys are litter mates, but they are complete opposites. They are not allowed at night, so when it goes dark, they are indoors. They are five years old.
In the evening, they are awake. One still plays with toys and does so a little until my bedtime. The other will be sat with us for fuss and affection until bedtime.
At bedtime, they sleep all night until either I get up or dawn has broken. (this can be troublesome during BST).
They then go out for their morning toilet and attempt to hunt.
Around mid-morning, they come back for a snack/second breakfast. Food is permanently available to them. At this time, one of them stays in until about 2 pm sleeping. The other goes back out; this routine continues throughout the day for him.
I have another 11-year-old cat. She sleeps a lot. Most of the day is in winter. In summer, she's a little better but sleeps in the garden under the honeysuckle. As the garden is south-facing, she gets the best of both worlds there.