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What are the rules for pinging, is it allowed?

timePassed date

Handlebars.registerHelper('timeLeft', function (date) {
  //Get milliseconds from Date.now()
  var ms = Date.now() - Date.parse(date);
  //Return 0 if there is no time left
  if (ms >= 0) {
      return 0;
  }
  //Get the absolute value of ms
  ms = Math.abs(ms);
  //Convert ms into d h m s
  var d = Math.floor(ms / (24 * 60 * 60 * 1000));
  var h = Math.floor((ms - d * (24 * 60 * 60 * 1000)) / (60 * 60 * 1000));
  var m = Math.floor((ms - d * (24 * 60 * 60 * 1000) - h * (60 * 60 * 1000)) / 60000);
  var s = Math.floor((ms - d * (24 * 60 * 60 * 1000) - h * (60 * 60 * 1000) - m * 60000) / 1000);
  //Prepare the result string
  var result = '';
  //Convert overflowing s into m
  if (s === 60) {
      m++;
      s = 0;
  }
  //Convert overflowing m into h
  if (m === 60) {
      h++;
      m = 0;
  }
  //Convert overflowing h into d
  if (h === 24) {
      d++;
      h = 0;
  }
  //Concat d to result if it is greater the 0
  if (d > 0) {
      result = result.concat((d > 1) ? d + ' days ' : d + ' day ');
  }
  //Concat h to result if it is greater the 0
  if (h > 0) {
      result = result.concat((h > 1) ? h + ' hours ' : h + ' hour ');
  }
  //Concat m to result if it is greater the 0
  if (m > 0) {
      result = result.concat((m > 1) ? m + ' minutes ' : m + ' minute ');
  }
  //Concat s to result if it is greater the 0
  if (s > 0) {
      result = result.concat((s > 1) ? 'and ' + s + ' seconds ' : ' and ' + s + ' second ');
  }
  return result;
});```
Usage:

Example:

Output: