Jan 31, 2018. The moon and sun are primarily responsible for the rising and falling of ocean tides, but, for any particular spot on Earth's surface, the height of. TheTribune: WASHINGTON: Days on the Earth are getting longer, thanks to the movement of the Moon away from the planet, according to a study which found that 1.4 billion years ago a day lasted just over 18 hours. May 21, 2013….