[sed3]

There was never a negative leap second, so most systems are not ready for it. It is not just a question of time metadata.

And cooperation could be a problem. I can not imagine Microsoft providing updates for illegal Windows 7 in North Korea, and NK government just taking them.

[tokai]

I don't understand why we should care if NK's systems are on time or not.

[throw46365]

We should probably care that at least some of their systems share our definition of time.

International agreements have start times (and a couple of seconds could matter).

Physical things (any future international power supply for example) might depend on it too.

For better or worse, we have to be more charitable with NK than they are with us.

[j16sdiz]

> International agreements have start times (and a couple of seconds could matter).

International agreement get violated all the time. good faithfulness is more important than those couple of seconds.

[sed3]

Electricity exchange grid needs to be phased within 60Hz, that is a delay of a few milliseconds. Baltic states hate Russia, but they are still connected this way for example.

Maybe you do not care, but this stuff is extremely important. Airplanes could crash over a few seconds difference!

[hermitdev]

> Electricity exchange grid needs to be phased within 60Hz

Electric grids also make use of DC interconnects that obliviate the need for that synchronization. The contiguous 48 US states have at least 3 separate grids that are interconnected. Roughly east/west/Texas. There may be more, but I'm out of touch with it.

[throw46365]

Interesting.

Though I wasn't really thinking about phase sync when I was talking about time and cross-border electricity (indeed, hadn't occurred to me!)

Just scheduling, switching, co-ordination etc. It is likely to me that other international things, both physical and logical) rely at least as much on time being accurate to the second.

[Scoundreller]

Looks like the Baltics are looking to synchronize with the rest of Europe by 2025 (and already stopped trading with Russia in 2022):

https://elering.ee/en/synchronization-continental-europe

[NikkiA]

> 60Hz

ITYM 50Hz