The Capodimonte Forest in Naples is open to visitors with the following hours:
From November to February: 7 a.m. - 5 p.m.
From March to October: 7 a.m. - 6 p.m.
From April to September: 7 a.m. - 7:30 p.m.
These hours may vary depending on holidays or special events, so I recommend checking for any seasonal or daily changes.