Изучаем программирование на HTML5. Эрик Фримен

        function getNextShowing(movie) {
  var now = new Date().getTime();
  for (var i = 0; i < movie.showtimes.length; i++) {
    var showtime = getTimeFromString(movie.showtimes[i]);
    if ((showtime - now) > 0) {
      return "Next showing of " + movie.title + " is " + movie.showtimes[i];
    }
  }
  return null;
}
 
 
function getTimeFromString(timeString) {
  var theTime = new Date();
  var time = timeString.match(/(\d+)(?::(\d\d))?\s*(p?)/);
  theTime.setHours(parseInt(time[1]) + (time[3] ? 12 : 0));
  theTime.setMinutes(parseInt(time[2]) || 0);
  return theTime.getTime();
}
var nextShowing = getNetxShowing(movie1);
alert(nextShowing);
nextShowing = getNextShowing(movie2);
alert(nextShowing);
 
 
var banzaiMovie = {
  title: "Buckaro Banzai",
  genre: "Cult classic",
  rating: 5,
  showtimes: ["1:00pm", "5:00pm", "7:00pm"]
};
var nextShowing = getNextShowing(banzaiMovie);
alert(nextShowing);

 var movie1 = {
            title: "Plan 9 from Outer Space",
            genre: "Cult Classic",
            rating: 5,
            showtimes: ["3:00pm", "7:00pm", "11:00pm"]
        };
        var movie2 = {
            title: "Forbidden planet",
            genre: "Classic Sci-fi",
            rating: 5,
            showtimes: ["5:00pm", "9:00pm"]
        };