This is a fascinating read. If the Earth speeds up enough, we might find ourselves pondering over the possibility of a negative leap second. According to the T

This is a fascinating read. If the Earth speeds up enough, we might find ourselves pondering over the possibility of a negative leap second. According to the Time and Date folks [0], a day in 2021 is averaging about 0.2ms faster than the 84600 atomic seconds per day, ~70ms/year, so at most 14 years of this would put us over the threshold (super unlikely). In reality, we don’t have to speed up a full 1000ms of rotation speed because there was always a fractional difference in UT1-UTC. https://www.timeanddate.com/time/earth-faster-rotation.html https://www.timeanddate.com/time/earth-faster-rotation.html