Yes, you can certainly use a window air conditioner in your room when it's hot outside and not at night. Window air conditioners are designed to provide cooling to a specific area or room, and you can control when to turn them on and off based on your comfort needs and preferences.
Using a window air conditioner during hot daytime hours can help maintain a comfortable indoor temperature and create a more pleasant living environment. When the outdoor temperature rises, the air conditioner can cool down your room efficiently, making it more bearable during the heat of the day.
However, if you find that the temperature cools down significantly during the night or early morning, and you don't require the air conditioning to maintain a comfortable temperature, you can turn the unit off to save energy. Many window air conditioners come with a built-in thermostat or temperature control, which allows you to set a specific temperature or turn off the unit automatically when the desired temperature is reached.
Using the air conditioner only when necessary can help reduce energy consumption and lower utility bills. Additionally, when the air conditioner is not in use, you can open windows and use fans to take advantage of natural ventilation and cooling during cooler hours, further reducing your reliance on the air conditioner.
Remember to keep the windows closed when the air conditioner is running to prevent warm air from entering the room and to maximize the cooling effect of the unit. Additionally, make sure the air conditioner is properly installed and sealed in the window to avoid any drafts or energy loss.
Overall, using a window air conditioner selectively during hot daytime hours and turning it off when it's not needed can help you stay comfortable while being mindful of energy usage.