I recommend you look for this information via this website, which will direct you the  information, if it's currently available.
https://www.seat61.com/train-travel-in-italy.htm58
Â
Click "follow" to receive a notification every time the Italian railway releases its new train timetables. The railway releases schedules in different blocks, generally spanning three to six months of travel, and the schedules vary between Intercity and high-speed trains and between different cities.
I recommend you look for this information via this website, which will direct you the  information, if it's currently available.
https://www.seat61.com/train-travel-in-italy.htm58
Â