when does the over head sun occur at the tropic of cancer

2 answers

The tropic of Cancer is a latitude line North of the equator. The sun is right over it Or better it is right under the sun) at the summer solstice (Tropic of Capricorn is the winter solstice, South of the equator) It happens in June.
Therefore, the overhead sun occurs at the tropic of Cancer during the summer solstice, which is around June 21st.