如何使用NSDateFormatter获取本地时间(从ICS文件解析)

I'm trying to get the local time from an NSDate and it is only outputting the +0000 timezone. I'm parsing the information from an ICS file and then converting the string (looks like 20131001T114445Z) to a date with NSDateFormatter but for some reason I can't change it to the user's local time.I'm trying to get the local time from an NSDate