twitter localize dates

convert mentions of dates/times in tweet to local

As of 28. 07. 2024. See the latest version.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

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

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

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

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

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

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.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         twitter localize dates
// @namespace    http://tampermonkey.net/
// @version      2024.07.28
// @description  convert mentions of dates/times in tweet to local
// @author       You
// @match        https://twitter.com/*
// @match        https://x.com/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=twitter.com
// @grant        none
// @license MIT
// @require https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.30.1/moment.min.js
// @require  https://cdnjs.cloudflare.com/ajax/libs/moment-timezone/0.5.45/moment-timezone-with-data-10-year-range.js
// ==/UserScript==


// https://www.ge.com/digital/documentation/workflow/r_wf_time_zone_abbreviations_for_date_and_time_functions.html
        const timeZoneMap = {
            ET: "America/New_York",
            EST: "America/New_York",
            EDT: "America/New_York",
            PT: "PST"
        }
/**
         * @param {string} str
         */
        function parseTime(str) {
            const timeStrMatch = str.match(/(?<time>[0-9][0-9]?(:[0-9][0-9])?)(?<offset>(a|p|A|P)(m|M))? +(?<timezone>[a-zA-Z]*)/)
            let timeStr = timeStrMatch?.groups?.time
            let timeZone = timeStrMatch?.groups?.timezone
            if(timeStr && timeZone) {
                const today = new Date().toISOString().split("T")[0]
                if(!timeStr.includes(":")) {
                    timeStr += ":00"
                }

                timeZone = timeZoneMap[timeZone.toUpperCase()] ?? timeZone

                const momentParsed=moment.tz(`${today} ${timeStr} ${timeStrMatch?.groups.offset ?? ''}`,"YYYY-MM-DD hh:mm A",timeZone)
                const dateMillis=+momentParsed
                return new Date(dateMillis)
            }

            return null
        }





        window.addEventListener("mousemove", e => {
            if(e.target instanceof HTMLElement) {
                const tweet = e.target.closest('[data-testid="cellInnerDiv"]')
                if(tweet && tweet instanceof HTMLElement) {
                    const text = tweet.querySelector('[data-testid="tweetText"]')?.textContent.trim();
                    if(text) {
                        const parseddate = parseTime(text)
                        if(parseddate && !isNaN(+parseddate)) {
                            tweet.title = parseddate.toLocaleTimeString(undefined,{hour12:false})
                        }
                    }
                }
            }
        })