That said, depending on the construction type of the building you’re in, it may not be accurate.
For me, if it’s chilly overnight and only a bit too hot during the daytime, the best play is to open the windows to the too cold air in the morning; blow it through thoroughly; then shut the windows around 9am, before it starts to get meaningfully warmer. That traps the cool air inside and can sometimes get you through a full day without AC when having the windows open would be far too hot.
But that works far better in brick or concrete construction than wood.
That said, depending on the construction type of the building you’re in, it may not be accurate.
For me, if it’s chilly overnight and only a bit too hot during the daytime, the best play is to open the windows to the too cold air in the morning; blow it through thoroughly; then shut the windows around 9am, before it starts to get meaningfully warmer. That traps the cool air inside and can sometimes get you through a full day without AC when having the windows open would be far too hot.
But that works far better in brick or concrete construction than wood.