screen time

/S K R IY1 N T AY0 M/
noun
  1. 1

    The duration for which something is visible in film or television.

    โ€œThe wise old monk had little screen time compared with his buxom young disciple.โ€

  2. 2

    The amount of time a person spends using screen-accessed technology (such as television, a computer, a smartphone, an iPod, etc.).

    โ€œThe editorial advised parents of small children to limit their kids' screen time.โ€

Source: https://en.wiktionary.org/wiki/screen%20time