47 thousandths of a second per day.
Like being thrown from a car after it hits a brick wall in super duper slow motion.
Science discovers many things: every day there may be a discovery.
They have now admitted there is some delay and the day is going to lengthen: whether it is small or big.. later on they will tell you another thing in another way, because researching is going on continuously.
This has been done in comparison to some recent days and measures, which is not a dogmatic thing or something revealed by God.. they only think so.
In addition, scientists have admitted the Moon gets away somewhat, and certainly it is too much distance, because the earth gravity still controls the Moon, although it has weakened.
Some may give other explanations, but who told you their explanations are true and real? There may be other explanations.. this is to one who is not stick to traditional explanations.