Why does Javascript turn month 3 into April?

Question

Now this seems kind of odd...

I have an array like this:

a = ["2014", "03", "12", "08", "43", "51"]

which I need to convert into a DateTime object. However:

new Date(a[0], a[1], a[2], a[3], a[4], a[5]);

returns Date {Sat Apr 12 2014 08:43:51 GMT+0200 (CEST)}

Question
What happened to March?

Months are zero-based in Javascript, i.e. January is 0, April is 3. — Robby Cornelissen, Aug 22 '14 at 09:46

score 3 · Answer 1 · answered Aug 22 '14 at 09:49

3

JavaScript uses 0 as January, 1 as February, so on till 11 as December. It is like array of of months from 0 to 11. Thats why it converts three as April

answered Aug 22 '14 at 09:49

Programmer

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score 2 · Accepted Answer · edited May 23 '17 at 12:21

2

Try this

a = ["2014", "02", "12", "08", "43", "51"]

We are starting counting (only) month at zero.

edited May 23 '17 at 12:21

Community

1
1

answered Aug 22 '14 at 09:48

Christian Gollhardt

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score 2 · Answer 3 · answered Aug 22 '14 at 09:50

2

For some reason, months in Javascript date are from 0 to 11 and not from 1 to 12

answered Aug 22 '14 at 09:50

Sleiman Jneidi

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Why does Javascript turn month 3 into April?

3 Answers3