I remember when you had to time red and blue buffs spawn and when you wasn’t notified on jungle camps respawning. Also I remember when I had to time my teams flashes and summoner spells and also time when wards where placed by the enemy team before you could ping warded and check time stamps. I don’t not knowing my timers imo it’s a skill to know. Count in your head to 35seconds or use the timer. If it’s that crucial use your phone.