Celestial Mechanics

For the first time in three years, official clocks will pause for Earth's rotation to realign with atomic time
Fluctuation is due to Earth's interaction with the Moon: primarily tidal acceleration
This process, this effect of tidal force, slows our planet's rotation
Angular momentum, in direct correspondence with Earth's axial tilt is dampened
An existing kinetic energy within orbit is lessened
All the same, the reduction is notably fractional: specifically, days on Earth grow 1.4 milliseconds longer every one hundred years
To put that in a different perspective, it won't be for another 100,000 years until each day is about one and a half seconds longer than as they exist today