[LEAPSECS] negative leap second in 2029?

[Paul Hirose]

"Even a few years ago, the expectation was that leap seconds would 
always be positive, and happen more and more often," Duncan Agnew, a 
geophysicist at Scripps Institution of Oceanography at University of 
California's San Diego campus, said in a statement. "But if you look at 
changes in the Earth’s rotation, which is the reason for leap seconds, 
and break down what causes these changes, it looks like a negative one 
is quite likely. One second doesn’t sound like much, but in today’s 
interconnected world, getting the time wrong could lead to huge problems."

https://www.foxweather.com/earth-space/what-time-is-it-clock-adjustment