what's time for pingpong table open at weekday and weekend? Is there any fee to play?

Drop-in Table Tennis Activity Monday 6 pm - 8:30 pm (Adult only) Tuesday 1 pm - 2:30 pm / 6 - 8:30 pm(Adult only) Wednesday 1 pm - 2:30 pm / 6 - 8:30 pm (Adult only) Friday 1 pm - 2:30 pm / 6 - 8:30 pm (Adult only) Saturday 1 pm - 4:30 pm (Open Table ) Adult $3 Seniors (Aged 65 up) $2

what days are the senior table tennis?