> Does this mean grid-synced clocks in the south-east part are now permanently ahead of the atomic reference, or are they planning a mitigation (which I assume

> Does this mean grid-synced clocks in the south-east part are now permanently ahead of the atomic reference, or are they planning a mitigation (which I assume would have to mean disconnecting again and running the SE part slower for a bit)? That's the standard procedure. Maintaining an exact frequency can be hard, but counting cycles is easy. So the frequency will slew to slowly compensate back. Edit: Here's a Tom Scott video on a UK–Continental divergence that happened a while back: https://www.youtube.com/watch?v=bij-JjzCa7o https://www.youtube.com/watch?v=bij-JjzCa7o