On Friday, as we were cleaning up for shabbos, one of my kids turned on the music.

My five year old daughter asked me when Tisha B'Av is over. I said to her that Tisha B'Av was yesterday, not today. She asked again, "No! When does Tisha B'Av end??"

I said, Tisha B'Av was yesterday and it finished last night.

She said again "When does Tisha B'Av end??"

I repeated, last night so today we can listen to music.

She asked curiously "Tisha B'Av ended? The Beis HaMikdash was built?"

It seems like 5 year old understand better than adults what "Tisha B'Av ending should really mean...