Serie A games will have more time slots from 2018-2021. The change will be from 5 slots to now 8 slots.
Evening matches are changed to 20:30 rather than 20:45
Midweek Matches have two slots at 19:00 and eight at 21:00. Six midweek games will be played on Wednesdays, one on Tuesdays and Thursdays.
The weekend game changes are as follows: Saturday: 15:00, Sunday 18:00 and Monday 20:30
Source: FCInternews