src/content/images_www/js/timeline_2.3.0/timeline_js/scripts/l10n/cs/labellers.js

/*==================================================
 *  Localization of labellers.js
 *==================================================
 */

Timeline.GregorianDateLabeller.monthNames["cs"] = [
    "Leden", "Únor", "Bøezen", "Duben", "Kvìten", "Èerven", "Èervenec", "Srpen", "Záøí", "Øíjen", "Listopad", "Prosinec"
];

Timeline.GregorianDateLabeller.dayNames["cs"] = [
    "Ne", "Po", "Út", "St", "Èt", "Pá", "So"
];

Timeline.GregorianDateLabeller.labelIntervalFunctions["cs"] = function(date, intervalUnit) {
    var text;
    var emphasized = false;

    var date2 = Timeline.DateTime.removeTimeZoneOffset(date, this._timeZone);
    
    switch(intervalUnit) {
    case Timeline.DateTime.DAY:
    case Timeline.DateTime.WEEK:
        text = date2.getUTCDate() + ". " + (date2.getUTCMonth() + 1) + ".";
        break;
    default:
        return this.defaultLabelInterval(date, intervalUnit);
    }
    
    return { text: text, emphasized: emphasized };
};