It's available in Communications section the Official Notice n.57.
It's been confirmed that the 2019/2020 Primavera TIM Supercup will be played at the Gewiss Stadium in Bergamo on Monday 28 October 2019, with Atalanta (2018/2019 Primavera 1 TIM Winner) set to take on Fiorentina (2018/2019 Primavera TIM Cup Winner) to decide the winner. Kick-off is scheduled for 20:30 CEST.
Source: legaseriea.it