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HTML

              
                Check the console.
              
            
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CSS

              
                
              
            
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JS

              
                let time = (function () {

	/**
	 * Add seconds to a date
	 * @param {Date}    date The date object
	 * @param {Integer} n    The number of seconds to add
	 */
	function addSeconds (date, n) {
		date.setSeconds(date.getSeconds() + n);
	}

	/**
	 * Add minutes to a date
	 * @param {Date}    date The date object
	 * @param {Integer} n    The number of minutes to add
	 */
	function addMinutes (date, n) {
		date.setMinutes(date.getMinutes() + n);
	}

	/**
	 * Add hours to a date
	 * @param {Date}    date The date object
	 * @param {Integer} n    The number of hours to add
	 */
	function addHours (date, n) {
		date.setHours(date.getHours() + n);
	}

	/**
	 * Add days to a date
	 * @param {Date}    date The date object
	 * @param {Integer} n    The number of days to add
	 */
	function addDays (date, n) {
		date.setDate(date.getDate() + n);
	}

	/**
	 * Add months to a date
	 * @param {Date}    date The date object
	 * @param {Integer} n    The number of months to add
	 */
	function addMonths (date, n) {
		date.setMonth(date.getMonth() + n);
	}

	/**
	 * Add years to a date
	 * @param {Date}    date The date object
	 * @param {Integer} n    The number of years to add
	 */
	function addYears (date, n) {
		date.setFullYear(date.getFullYear() + n);
	}

	// Public methods
  return {addSeconds, addMinutes, addHours, addDays, addMonths, addYears};

})();

// Create a Date() object for right now
let now = new Date();

// Add two days and one month
time.addDays(now, 2);
time.addMonths(now, 1);

console.log(now);
              
            
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999px

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