Splunk insists on using the locale based time in the _time column of search results; even though my LC_TIME locale is en_DK.utf8; this gives me a nice short big-to-small time format

splunktime2rationaltime.user.js

// ==UserScript==
// @name         Splunk-time to Rational-time
// @namespace    org.voltar.splunktime2rational
// @version      0.31
// @downloadURL  https://goo.gl/7qizYC
// @description  Splunk insists on using the locale based time in the _time column of search results; even though my LC_TIME locale is en_DK.utf8; this gives me a nice short big-to-small time format
// @author       https://github.com/jettero
// @require      https://openuserjs.org/src/libs/sizzle/GM_config.js
// @match        *://*splunk*/*-*/app/*/search*
// @match        *://*/splunk/*-*/app/*/search*
// @match        *://*splunk*/*-*/app/*/report*
// @match        *://*/splunk/*-*/app/*/report*
// @grant        GM_setValue
// @grant        GM_getValue
// @grant        GM_registerMenuCommand
// ==/UserScript==

(function() {
    var fix_times = function(ev){
        var format = GM_config.get("format");
        var sformat = ('<span style="white-space: nowrap">' + format + '</span>').replace("|","</span><br><span>");
        var nowrap  = GM_config.get("nowrap");

        $(ev.target).find('*[data-time-iso]').each(function(){
            var new_html = $(this).html( new Date($(this).attr('data-time-iso')).strftime(sformat) );
            if( nowrap )
                new_html.find("span").css({'white-space': 'nowrap'});
        });
    };
    GM_config.init({
        'id': 'MyConfig',
        'fields': {
            'format': {
                'label': 'strftime-format',
                'title': 'pipe characters split the resulting <span>',
                'type': 'text',
                'default': '%Y-%m-%d|%H:%M:%S'
            },
            'nowrap': {
                'label': 'add nowrap style to spans',
                'type': 'checkbox',
                'default': true
            }
        },
        'events': {
            'save': function(values) {
                fix_times({'target': document.body});
                GM_config.close();
            }
        }
    });

    GM_registerMenuCommand('Splunk-time to Rational-time Preferences', function(){GM_config.open();});

    $(window).on('DOMNodeInserted', fix_times);
})();