[seoaeu]

Because time in the real world uses leap seconds. The time businesses open and close. The times reported in news articles. And so on. What facebook wants is for all of them to stop using leap seconds so facebook’s infrastructure is simpler

[umanwizard]

Times reported in newspapers are not granular enough that it’s even possible to notice whether leap seconds are used.

[gowld]

It's not just Facebook. A large community doesn't want them.

https://www.cl.cam.ac.uk/~mgk25/time/leap/

Time in the real world can use leap hours, the next of which will be in approximately 3000 years.

[yebyen]

The article you linked seems to be arguing pretty strongly against leap hours. I'm not sure we could solve all those problems even in 3000 years. Can we compromise and use leap minutes? That way the problem is a bit more immediate, in 50 years we're sure to have solved it; or we'll all be dead and it will be on someone else!