override func viewDidLoad() {
    super.viewDidLoad()

    setupLabel()
}

private func setupLabel() {
    timeLabel.text = "0.0"

    timeLabel.textAlignment = .center
    timeLabel.layer.cornerRadius = 14
    timeLabel.layer.backgroundColor = UIColor.gray.cgColor
    timeLabel.font = UIFont.boldSystemFont(ofSize: 70)
    timeLabel.textColor = .white

    view.addSubview(timeLabel)
}