In Javascript “d.setDate(d.getDate() + 1)” gives wrong answer in days when was time change

Question

I have following code:

var d = new Date(\'2016-03-27\');
console.log(d.getDate(), d);
d.setDate(d.getDate() + 1);
console.log(d.getDate(), d);

Answer 1

Since you are working with UTC format dates, and you want to ignore local timezone changes such as daylight savings time, you should always use getUTCDate() and setUTCDate(). UTC has no daylight savings.

var d = new Date('2016-03-27');
console.log(d.getUTCDate(), d);
d.setUTCDate(d.getUTCDate() + 1);
console.log(d.getUTCDate(), d);

Also consider JavaScript date libraries such as moment.js if you have more complex requirements.