Mercury sign calculator
Your Mercury sign is the sign Mercury was in when you were born. It describes the way your mind works: how you think, learn, talk and write, how you make decisions and what kind of conversation you enjoy.
Mercury is never more than 28° from the Sun, so your Mercury sign is either your Sun sign or the sign just before or after it. It turns retrograde three or four times a year; being born during a Mercury retrograde often points to a reflective, inward-looking way of thinking.
Your birth date is enough for the calculation. If Mercury changed sign on the day you were born, you will be told the time of the change; adding your birth time settles it.