If you're curious why time passes more quickly on the Moon, it's this: https://en.wikipedia.org/wiki/Gravitational_time_dilation Because Earth's gravity is higher, there’s more time dilation than on the Moon (by about 58.7 microseconds per day, or 2.144 seconds per century).
One way to think about it is that the local neighborhood of spacetime for someone standing on the Earth's surface is boosted (“tilted”, in a 4D sense) relative to that for someone far away from any massive body.