v2

formatedatereborn.js

// ==UserScript==
// @name         L2Reborn Raid Boss Status Date Fix
// @namespace    http://tampermonkey.net/
// @version      2024-05-06
// @description  Formats the respawn time of raid bosses in the browser's timezone instead of UTC.
// @author       discord.com/users/nymphadora_
// @match        https://l2reborn.org/seasons-h5/raid-boss-status-s2/
// @icon         https://www.google.com/s2/favicons?sz=64&domain=l2reborn.org
// @grant        none
// ==/UserScript==

const formatRespawnTime = () => {
  const rows = Array.from(
    document.querySelectorAll(".rankings__content__table__content")
  );

  rows
    .map((row) => row.children[3])
    .filter((cell) => !cell.classList.contains("formatted"))
    .forEach((cell) => {
      const respawnTime = cell.textContent.trim();
      if (respawnTime) {
        const [date, minTime, , maxTime] = respawnTime.split(" ");

        const newDate = new Date(`${date} ${minTime} UTC`);
        const maxDate = new Date(`${date} ${maxTime} UTC`);

        cell.textContent = `${newDate.toLocaleDateString()} ${newDate.toLocaleTimeString()} - ${maxDate.toLocaleTimeString()}`;
        cell.classList.add("formatted");
      }
    });
};

(function () {
  "use strict";

  const root = document.querySelector("#rankings-page");
  const observer = new MutationObserver(() => {
    formatRespawnTime();
  });
  observer.observe(root, {
    childList: true,
    subtree: true,
  });

  formatRespawnTime();
})();