It appears that many people have the practice of managing the air conditioner all day along with all night long. I know, I used to be those types of people. The issue is though, a bit fresh air never hurt anyone and you certainly do not wish to open your electricity bill and find you owe 8 100 dollars. Trust me, it can happen. When you are home during the day and it is hot outside, ensure you are running your air conditioner.
However, when you are not home, it's not necessary to have it on all day long because you're simply wasting energy. Of course, those with animals in the house have an issue so at least turn the air conditioning down to a lower setting while you are away instead of turning it entirely off.
Of the nights, if the outdoors air is cooler compared to the interior air, turn off the air conditioners and open a couple of doors and windows arctos portable ac pros and cons run some fans. This tends to let the cooler outside air to are available in to cool the home. This is far more power efficient than continuing to utilize the air conditioning throughout the night.
In addition, make sure that you are not always running an air conditioner where there haven't been people in the home. For example, there really is no reason at all to run an air conditioner on full blast for hours on end and through the night at a guest room that absolutely no one is actually in. That is just a waste.