function Schedule() {
  let schedule = {
    monday: [
      {description: "do something"},
      {description: "do something else"},
      {description: ""},
      {description: ""},
      {description: ""},
      {description: ""},
      {description: ""}
    ]
  };

  return (
    <div>
      {Object.entries(schedule).map(([day, tasks]) =>
        <DailyTasks day={day} tasks={tasks} key={day}/>
      )}
    </div>
  );
}

function DailyTasks({tasks, day}) {
  return (
    <div>
      {day}:
      {tasks.map((task, i) => <span key={i}>{task.description}</span>)}
    </div>
  );
}