text: import React from 'react';
  
  class CountdownTimer extends React.Component {
      constructor(props) {
          super(props);
          this.state = { date: new Date() };
      }
  
      componentDidMount() {
          this.timerID = setInterval(
              () => this.tick(),
              1000
          );
      }
  
      componentWillUnmount() {
          clearInterval(this.timerID);
      }
  
      tick() {
          this.setState({
              date: new Date()
          });
      }
  
      render() {
          return (
              <span className="countdownTimer">{this.state.date.toLocaleTimeString()}</span>
          );
      }
  }
  
  export default CountdownTimer;