Javascript date parsing bug - fails for dates in June (??)

Question

I have some javascript which parses an ISO-8601 date. For some reason, it is failing for dates in June. But dates in July and May work fine, which doesn\'t make sense to m

Answer 1

The date object starts off with the current date. It's the 31st today so setting 2009-06-09 gives:

var date = new Date();     // Date is 2009-07-31
date.setUTCFullYear(2009); // Date is 2009-07-31
date.setUTCMonth(6 - 1);   // Date is 2009-06-31 = 2009-07-01
date.setUTCDate(9);        // Date is 2009-07-09

If you set the date to the 1st before you begin, then you should be safe.