Sorry yes null is 24/7. I was too quick to post that!
You did miss one though.
4507,2022-12-28,16,5,250,16.0,250,yes,Ellenton,FL,34222,27.53793,-82.50736,5461,Factory Shops Boulevard,0,US,Tesla,Tesla Supercharger,charging_station,24/7
Has 5:00AM - 11:00PM in supercharge.info
Maybe for simplicity is it contains any value don’t mark it 24/7