The length of daylight in Buena Park changes significantly over the course of a year. The longest day occurs around the summer solstice in June, with approximately 14 hours and 24 minutes of daylight. Conversely, the shortest day happens near the winter solstice in December, offering just 9 hours and 54 minutes of daylight. These variations are caused by the Earth's axial tilt, which affects how sunlight reaches different parts of the planet.