CODEWITHSUNDEEP
javascriptdate
icn
icn

Reputation: 17876

Javascript getDay() returns wrong result

My code

var d = new Date("2014-09-01"); 
var days = ['Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday'];
days[d.getDay()]

I expects days[d.getDay()] returns Monday but It got Sunday

I am located in Pacific Time California zone

Do I miss something?

Upvotes: 0

Views: 143

Answers (2)

BA TabNabber
BA TabNabber

Reputation: 1356

Dan Tao is right, here's how you can fix the missing timezone. 

var d = new Date("2014-09-01"); 
var days = ['Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday'];
d.setTime( d.getTime() + d.getTimezoneOffset()*60000 );

http://jsfiddle.net/s1bse8fm/2/

Related: How do you create a JavaScript Date object with a set timezone without using a string representation

Upvotes: 1

Dan Tao
Dan Tao

Reputation: 128317

The string you're passing to the constructor, "2014-09-01" does not indicate a time zone. On both Chrome and Firefox (based on my tests right now), this seems to be interpreted as a GMT date. When you call getDay(), the day is given in your local time zone.

So in my case, since I am in California, the date 2014-09-01, which is midnight in GMT, is actually 5pm on August 31 in PDT.

Upvotes: 1

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