Your sign doesn't change... it is based on the year you were born. Your full astrological chart is based on the exact time and place you were born, among other things. If you're really concerned with what sign you are, I would advise looking into actual astrology sites and not pay attention to news media. The news media is just catching up to things that astrologers have known for ages. In other words, it is a bunch of hype over nothing. As for me I could care less... I just happen to know enough to hold a conversation with those who do if necessary.