2 ms·Cute. d = new Date() >> 07/29/2010 d.setMonth(1) >> 02/29/2010 is invalid date, normalize to 03/01/2010by lhorie 16y agoCute. d = new Date() >> 07/29/2010 d.setMonth(1) >> 02/29/2010 is invalid date, normalize to 03/01/2010