Alexandra Fuller said this quote

There is only one time of absolute silence. Halfway between the dark of night and the light of morning, all animals and crickets and birds fall into a profound silence as if pressed quiet by the deep quality of the blackest time of night...This silence is how I know it is not yet dawn, nor is it the middle of the night, but it is the place of no-time, when all things sleep most deeply, when their guard is dozing