Question: What do French people eat and drink for their tea time? And when is the general tea time?
Answer: Most children in France will have a snack (called a goûter) at around four in the afternoon. This is why this little meal is sometimes called le quatre heures (the four o'clock).
Although it is quite likely a French adult might grignote (nibble) something around four, there really is not an active tradition of enjoying tea time together. Friends might get together anytime in the afternoon for a tea or coffee, but oftentimes there is no food involved.
The goûter on the other hand is truly an essential moment in French children's daily lives. The classic snack is a piece of baguette with some chocolate. In modern times, the chocolate is often replaced by Nutella.
Hope that answers your question about French tea time!