my son is 4 years old and recently started showing interest in the calendar. He can tell you the day of the week for any random date in the next 3 years. he usually gets 9-10 correct out of 12. At first we thought it was eidetic memory (photographic) because the calendar we bought for him has the next three years posted. but now he is doing years not posted. He is not in the autism spectrum as his social skills are intact. He also remembers the birthdays of people he has only met once and will continue to remember their birthday for months. Does anyone have any advise as to actions we should take.
