If we eliminate leap seconds, we'll need a leap hour in ~500 years. It could be announced 50 years in advance.
> It could be announced 50 years in advance.
Which is about how long it took for folks to switch from the Julian to the Gregorian calendar.
alt Hacker News
> It could be announced 50 years in advance.
Which is about how long it took for folks to switch from the Julian to the Gregorian calendar.