Problem with regional JQuery datepicker ?

Hi,

One of my plugin load the JQuery regional (FR) datepicker jquery.ui.datepicker-fr.js?ver=1.11.1 and for some reason it makes problem with the plugin.

What happen is that the date & time of the event becomes the current date & time during the creation process, so that the event is seen as a past event.

I notice this after I add these few lines in the archive loop :

$meta = get_post_meta($post->ID );
			echo date('d F Y H i', $meta['event-unix'][0]);
			</br>
			<?php echo current_time( 'mysql' );

As soon as I remove the file jquery.ui.datepicker-fr.js the new event created appear as upcoming… but the datepicker remains in english.

jQuery(function($){
	$.datepicker.regional['fr'] = {
		closeText: 'Fermer',
		prevText: 'Précédent',
		nextText: 'Suivant',
		currentText: 'Aujourd \'hui',
		monthNames: ['Janvier','Février','Mars','Avril','Mai','Juin',
		'Juillet','Août','Septembre','Octobre','Novembre','Décembre'],
		monthNamesShort: ['Janv.','Févr.','Mars','Avril','Mai','Juin',
		'Juil.','Août','Sept.','Oct.','Nov.','Déc.'],
		dayNames: ['Dimanche','Lundi','Mardi','Mercredi','Jeudi','Vendredi','Samedi'],
		dayNamesShort: ['Dim.','Lun.','Mar.','Mer.','Jeu.','Ven.','Sam.'],
		dayNamesMin: ['D','L','M','M','J','V','S'],
		weekHeader: 'Sem.',
		dateFormat: 'dd/mm/yy',
		firstDay: 1,
		isRTL: false,
		showMonthAfterYear: false,
		yearSuffix: ''};
	$.datepicker.setDefaults($.datepicker.regional['fr']);
});

I’ve try to modify this JS file in order to match with the original JQuery file that as a different dateFormat and firstDay or replacing with regional file from JQuery website but still the same and it is not clear for me what can cause this between the two.

It looks like $event_unix in $event_unix = get_post_meta( $post_id, 'event-unix', true ); returns empty value which cause $timestamp to be equal to current time.

private function save_timestamp() {

		$date_flag = false;
		$date = date_parse( $this->date );

		if( $date["error_count"] == 0 && checkdate( $date["month"], $date["day"], $date["year"] ) )
			$date_flag = true;

		$time_flag = false;
		$time = date_parse( $this->time );

		if( $time["error_count"] == 0 )
			$time_flag = true;

		if( $date_flag && $time_flag ) {
			$date_time = $this->date . ' ' . $this->time;
			$timestamp = strtotime( $date_time );
		}
		elseif( $date_flag ) {
			$timestamp = strtotime( $this->date );
		}
		else {

			$event_unix = get_post_meta( $post_id, 'event-unix', true );

			if( ! empty( $event_unix ) ) {
				$timestamp = $event_unix;
				}
			else
				$timestamp = current_time( 'timestamp' );
		}

		update_post_meta( $this->post_id, 'event-unix', $timestamp );

	}

Did you already have this plugin working with JQuery datepickers for others regions ?

https://wordpress.org/plugins/buddypress-simple-events/