Incorrect Date Format in JavaScript using getMonth() and getYear()

Question

I am having trouble understanding why a Date in Javascript come out wrong. For example...

$scope.campaign.date_start = new Date(19/11/2014);
Wed Nov 19 2014 00:00:00 GMT+0000 (GMT) - correct
$scope.campaign.date_start.getDay() = 19 - correct

So far so good, however getting the Month and the year gives me incorrect values....

$scope.campaign.date_start.getMonth() = 10 - incorrect should be 11
$scope.campaign.date_start.getYear() = 114 incorrect should be 2014

What I'm I going wrong here?

They are not giving you incorrect values. See the docs. getMonth(): Returns the month (0-11) getYear(): Returns the year minus 1900 — gen_Eric
– gen_Eric, Commented Nov 6, 2014 at 16:16
The real question is: "What didn't you do?". You did not read the proverbial manual. — PM 77-1
– PM 77-1, Commented Nov 6, 2014 at 16:26

T.V. · Accepted Answer · 2014-11-06 16:14:33Z

4

JavaScript getMonth() will always return actual month-1. For the year, you will need to use getFullYear() to get the 4 digit year

answered Nov 6, 2014 at 16:14

T.V.

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James Thorpe · Accepted Answer · 2014-11-06 16:16:12Z

4

getMonth is 0 based, so you need to +1 to get the number of the current month.

getYear is deprecated, and may break at some point in future, it (generally) returns the number of years since 1900. The correct method to use is getFullYear

answered Nov 6, 2014 at 16:16

James Thorpe

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Jay Dansand · Accepted Answer · 2014-11-06 16:15:35Z

1

Date.getMonth() is 0-base (January is month 0).

Date.getYear() is deprecated and is years since 1900 (hence 114).

http://www.w3schools.com/jsref/jsref_obj_date.asp

answered Nov 6, 2014 at 16:15

Jay Dansand

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2 Comments

T.V. Over a year ago

getYear() is not 0 base, it based of a 1900, so 2014-1900 so he's getting 114

Jay Dansand Over a year ago

Good point. Corrected. That's what I get for typing quickly and carelessly.

PM 77-1 · Accepted Answer · 2014-11-06 16:18:50Z

1

getMonth() is zero-based. So you will need getMonth()+1

getYear() was not Y2K compliant, so a new function getFullYear() was created to return 4-digit years.

answered Nov 6, 2014 at 16:18

PM 77-1

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