It depends, but typically you wouldn't keep a page open long enough to be able to do this. If you were, you could probably use an SSE stream that maps to human

It depends, but typically you wouldn't keep a page open long enough to be able to do this. If you were, you could probably use an SSE stream that maps to humanised time and then send an event every second. However, I'm not sure this is 100% optimal as it requires an update every second which is probably more overhead than you want.