I added some new shortcodes to my site, which doesn’t affect any of the front-end stuff, but while doing that, I was trying to determine when a post was published and found that the relative date formatting was annoying and getting in the way. So, instead of removing it, I added click handler to toggle it:

let state = 0;

// code handling the relative date formatting ...

element.addEventListener("click", function(){
	if(0 === state)
	{
		state = 1;
		element.textContent = dtObject.toString();
	}
	else
	{
		state = 0
		element.textContent = formattedTime;
	}
});

Nice and simple.