For this particular eclipse, the path of totality begins and ends mainly in the western hemisphere on April 8, 2024.The first graphic above shows why you have shading on the surface of the Earth (as you can see on this global map). The ground is darkest at the path of totality, because the Moon completely blocks the sunlight. As you move away from the path of totality, on the ground, the Moon is blocking less and less of the sunlight.
Notice how much darker Texas appears compared to Florida, for example. Again, sunlight is blocked totally in the central part of Texas by the Moon, whereas, in Florida, the Moon covers only about two-thirds of the Sun. If you were in Florida on that day, you would see very little difference between full daylight and the Sun partially obscured by the Moon at maximum eclipse.