How long does it take you to drop off your children with their other parent?

How long are you at drop offs? Do you and your ex talk? Is an hour too long? My husband takes an hour almost every drop off. It's a 15 minute drive. Just not buying that you have that much to talk about three times a week. Opinions? 
Edit: it's "court ordered" I can't be at drop offs because she has so much hatred for me. That's what he said when he came out of the courtroom.