code: function convertTime(value, fromUnit, toUnit)
  {
      if(fromUnit != toUnit && value !== 0)
      {
          return value * (toUnit == 's'? 0.001 : 1000);
      }
      return value;
  }
docs: convert time from seconds to milliseconds and vice versa
  
  @param {number} value
  @param {string} fromUnit - 's' | 'ms'
  @param {string} toUnit - 's' | 'ms'
  @returns {Number}