is it ok if i left my phone charging 18 hours?

[AC Question]

I left my phone in school then it was charging i forgot to get my phone before i leave i realized when im in the jeep i left my phone and im so nervous
44% 3:00 pm - 9:00 am if its ok to charge your phone like 18 hrs?

 

[Svvorf]

Some people never remove adapter from their devices
However doing it regularily can be harmful for you phone