StackExchange sites - convert dates to local timezone

Converts dates to your local timezone

Stan na 28-08-2019. Zobacz najnowsza wersja.

Aby zainstalować ten skrypt, wymagana jest instalacje jednego z następujących rozszerzeń: Tampermonkey, Greasemonkey lub Violentmonkey.

Aby zainstalować ten skrypt, wymagana jest instalacje jednego z następujących rozszerzeń: Tampermonkey, Violentmonkey.

Aby zainstalować ten skrypt, wymagana jest instalacje jednego z następujących rozszerzeń: Tampermonkey, Violentmonkey.

Aby zainstalować ten skrypt, wymagana będzie instalacja rozszerzenia Tampermonkey lub Userscripts.

You will need to install an extension such as Tampermonkey to install this script.

Aby zainstalować ten skrypt, musisz zainstalować rozszerzenie menedżera skryptów użytkownika.

(Mam już menedżera skryptów użytkownika, pozwól mi to zainstalować!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

Będziesz musiał zainstalować rozszerzenie menedżera stylów użytkownika, aby zainstalować ten styl.

Będziesz musiał zainstalować rozszerzenie menedżera stylów użytkownika, aby zainstalować ten styl.

Musisz zainstalować rozszerzenie menedżera stylów użytkownika, aby zainstalować ten styl.

(Mam już menedżera stylów użytkownika, pozwól mi to zainstalować!)

// ==UserScript==
// @name        StackExchange sites - convert dates to local timezone
// @namespace   darkred
// @version     2019.8.28
// @description Converts dates to your local timezone
// @author      darkred
// @license     MIT
// @include     /^(https?:)?\/\/(www\.)?((3dprinting|academia|ai|alcohol|android|anime|apple|arduino|astronomy|aviation|bicycles|bioinformatics|biology|bitcoin|blender|boardgames|bricks|buddhism|chemistry|chess|chinese|christianity|civicrm|codegolf|codereview|coffee|communitybuilding|computergraphics|conlang|cooking|craftcms|crafts|crypto|cs|cseducators|cstheory|datascience|dba|devops|diy|drupal|dsp|earthscience|ebooks|economics|electronics|elementaryos|ell|emacs|engineering|english|eosio|esperanto|ethereum|expatriates|expressionengine|fitness|freelancing|french|gamedev|gaming|gardening|genealogy|german|gis|graphicdesign|ham|hardwarerecs|hermeneutics|hinduism|history|homebrew|hsm|interpersonal|iot|iota|islam|italian|japanese|joomla|judaism|korean|languagelearning|latin|law|lifehacks|linguistics|literature|magento|martialarts|math|matheducators|mathematica|mechanics|medicalsciences|meta|monero|money|movies|music|musicfans|mythology|networkengineering|opendata|opensource|or|outdoors|parenting|patents|pets|philosophy|photo|physics|pm|poker|politics|portuguese|psychology|puzzling|quant|quantumcomputing|raspberrypi|retrocomputing|reverseengineering|robotics|rpg|rus|russian|salesforce|scicomp|scifi|security|sharepoint|sitecore|skeptics|softwareengineering|softwarerecs|sound|space|spanish|sports|sqa|stats|stellar|sustainability|tex|tezos|tor|travel|tridion|ukrainian|unix|ux|vegetarianism|vi|video|webapps|webmasters|windowsphone|woodworking|wordpress|workplace|worldbuilding|writing)\.stackexchange\.com|(es|ja|pt|ru)\.stackoverflow\.com|(askubuntu|serverfault|stackapps|stackoverflow|superuser)\.com|mathoverflow\.net).*$/
// @grant       none
// @require     https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.24.0/moment.min.js
// @require     https://cdnjs.cloudflare.com/ajax/libs/moment-timezone/0.5.26/moment-timezone-with-data.min.js
// @require     https://cdnjs.cloudflare.com/ajax/libs/jstimezonedetect/1.0.6/jstz.min.js
// ==/UserScript==

/* eslint-disable quotes, no-console */
/* global jstz, moment */


var localTimezone = jstz.determine().name();
var serverTimezone = 'Europe/Berlin';		// GMT+1

function convertDates(dates) {
	// var dates = document.querySelectorAll('.relativetime, .rep-time');
	var temp, temp2;
	for (var i = 0; i < dates.length; i++) {

		// 2019-08-24 03:26:50Z
		temp = moment(dates[i].title, 'YYYY-MM-DD HH:mm:ssZ', true);
		if (temp.isValid()) {
			dates[i].title = moment.tz(dates[i].title, serverTimezone).tz(localTimezone);
		}

		// Example URLS:
		// older, but of the same year:  https://stackoverflow.com/questions?tab=newest&page=1200
		// older, of previous years:     https://stackoverflow.com/questions?tab=newest&page=120000
		// Example timestamps:
		// Aug 7 at 6:45
		// Aug 24 at 12:23
		// Oct 24 '18 at 9:56
		// Oct 24 '18 at 13:57
		temp2 = dates[i].innerHTML.replace('at ', '').replace('\'', '') + ' Z';

		var formatNoYear = 'MMM D H:mm Z';
		var formatWithYear = 'MMM D YY H:mm Z';

		var newMoment1 = moment(temp2, formatNoYear, true);
		var newMoment2 = moment(temp2, formatWithYear, true);

		if (newMoment1.isValid()){
			dates[i].innerHTML = moment.tz(newMoment1, serverTimezone).tz(localTimezone).format('MMM D [at] H:mm');
		} else if (newMoment2.isValid()){
			dates[i].innerHTML = moment.tz(newMoment2, serverTimezone).tz(localTimezone).format("MMM D [']YY [at] H:mm");
		}
	}
}


var dates = document.querySelectorAll('.relativetime, .rep-time');
convertDates(dates);


// The part below is pointless to enable because the site's built-in feature that "the relative timestamps being increased every 1 min" becomes broken when this script is running
/*
// recalculate the relative times every 10 sec
(function(){
	convertDates(dates);
	setTimeout(arguments.callee, 1 * 60 * 1000);
})();
*/


var target = document.querySelectorAll('#question-mini-list, #questions, .rep-breakdown')[0],
	observer = new MutationObserver(function (mutations) {
		convertDates();
	}),
	config = {
		characterData: true,
		subtree: true
	};
observer.observe(target, config);