javascript create date from year, month, day

Question

I am trying to create a new date in javascript.

I have year, month and day. Following this tutorial, syntax for creating new date should be:

new Date(year, month, day, hours, minutes, seconds, milliseconds) 

and that is exactly what I am doing:

var d = new Date(2016, 12, 17, 0, 0, 0, 0); 

This should be december 17th 2016, but in my console output I see:

Tue Jan 17 2017 00:00:00 GMT+0100 (Central Europe Standard Time) 

What am I doing wrong?

Answer 1

January is month 0. December is month 11. So this should work:

var d = new Date(2016, 11, 17, 0, 0, 0, 0); 

Also, you can just simply do:

var d = new Date(2016, 11, 17); 

Answer 2

According to MDN - Date:

month

Integer value representing the month, beginning with 0 for January to 11 for December.

You should subtract 1 from your month:

const d = new Date(2016, 11, 17, 0, 0, 0, 0);