Okay guys I found the solution. I explain and later I will edit the proper files and upload somewhere. So the solution step-by-step:
1. Connect to the ftp or wherever your site is.
2. Head to /wp-content/plugins/contact-form-7-datepicker/js/jquery-ui-timepicker/i18n
3. Find the proper language file (for example jquery-ui-timepicker-hu.js is the hungarian file.
4. Open with a text editor
5. On the fourth line write the $.timepicker.regional to this -> $.datepicker.regional and at the 20th line the $.timepicker.setDefaults($.timepicker.regional['hu']); to $.datepicker.setDefaults($.timepicker.regional['hu']);
6. I hope it’s working for you too ??
For the fullness here is the whole german file:
/* Hungarian translation for the jQuery Timepicker Addon */
/* Written by Vas Gábor */
(function($) {
$.datepicker.regional['hu'] = {
timeOnlyTitle: 'Válasszon id?pontot',
timeText: 'Id?',
hourText: 'óra',
minuteText: 'Perc',
secondText: 'Másodperc',
millisecText: 'Milliszekundumos',
microsecText: 'Ezredmásodperc',
timezoneText: 'Id?zóna',
currentText: 'Most',
closeText: 'Kész',
timeFormat: 'HH:mm',
amNames: ['de.', 'AM', 'A'],
pmNames: ['du.', 'PM', 'P'],
isRTL: false
};
$.datepicker.setDefaults($.timepicker.regional['hu']);
})(jQuery);