Date.prototype.addHours = function(h) {<br /> this.setTime(this.getTime() + (h*60*60*1000));<br /> return this;<br /> }

//JS<br /> function addHoursToDate(date, hours) {<br /> return new Date(new Date(date).setHours(date.getHours() + hours));<br /> }</p> <p>//TS<br /> function addHoursToDate(date: Date, hours: number): Date {<br /> return new Date(new Date(date).setHours(date.getHours() + hours));<br /> }</p> <p>let myDate = new Date();</p> <p>console.log(myDate)<br /> console.log(addHoursToDate(myDate,2))

function addHours(hours, date = new Date()) {<br /> let ms = hours * 60 * 60 * 1000;<br /> date.setTime(date.getTime() + ms);<br /> return date;<br /> }