bbo/format_pass_time.js

bbo is a utility library of zero dependencies for javascript.

'use strict';

/**
 * @param  {Date} startTime timestamp
 * @return {String}
 */
var formatPassTime = startTime => {
  var seconds = Math.floor((new Date() - startTime) / 1000);
  var interval = seconds / 31536000;

  if (interval > 1) {
    return Math.floor(interval) + ' years';
  }

  interval = seconds / 2592000;

  if (interval > 1) {
    return Math.floor(interval) + ' months';
  }

  interval = seconds / 86400;

  if (interval > 1) {
    return Math.floor(interval) + ' days';
  }

  interval = seconds / 3600;

  if (interval > 1) {
    return Math.floor(interval) + ' hours';
  }

  interval = seconds / 60;

  if (interval > 1) {
    return Math.floor(interval) + ' minutes';
  }

  return Math.floor(seconds) + ' seconds';
};

module.exports = formatPassTime;