ui: current date and time in german format.

Assets/MemoryBox/arScene/Scripts/EditMemory.cs

 using System;
+using System.Globalization;
 using UnityEngine;
 using UnityEngine.UI;
 
@@ -32,6 +33,8 @@ namespace MemoryBox.arScene.Scripts
 		{
 			// creation time
 			var timeNow = DateTime.Now;
+			var ci = CultureInfo.GetCultureInfo("de-DE");
+			var dtfi = ci.DateTimeFormat;
 			// gps data
 			var gpsData = UserGps.GetLocationInfo();
 			
@@ -44,7 +47,7 @@ namespace MemoryBox.arScene.Scripts
 
 			// prepare edit Canvas
 			Name.text = "Memory #142";
-			CreationDate.text = timeNow.ToLongDateString();
+			CreationDate.text = timeNow.ToString(dtfi);
 			GpsData.text = gpsData.ToString();
 			Image.gameObject.SetActive(false);
 			ButtonImage.gameObject.SetActive(true);