function addHoursToDate(hours, date = new Date()) {
date.setTime(date.getTime() + hours * 60 * 60 * 1000);
return date;
}
const date = new Date('2022-03-14T07:22:15');
console.log(addHoursToDate(2, date).toString());
/*
run:
Mon Mar 14 2022 09:22:15 GMT+0000 (Coordinated Universal Time)
*/