click-on-closest-time.js

var now = new Date();
var closest;
var closestDiff = Infinity;
var clicked = false;

var divs = document.querySelectorAll("div[data-begin-time]");

divs.forEach(function (div) {
  // Assuming the time is in milliseconds since the Unix Epoch
  var time = new Date(Number(div.getAttribute("data-begin-time")));

  var diff = Math.abs(now - time);

  if (diff < closestDiff) {
    closest = div;
    closestDiff = diff;
  }
});

if (closest) {
  closest.click(); // Perform a click event on the closest time div
  clicked = true;
}

clicked;