tooltip date formatting updated

public/elotracker/chart-integration.js

@@ -91,7 +91,15 @@ async function create_charts() {
 				return format_rank(player_entries_byName[context.dataset.label][context.parsed.x / 1000]["tier"], player_entries_byName[context.dataset.label][context.parsed.x / 1000]["rank"], player_entries_byName[context.dataset.label][context.parsed.x / 1000]["points"])
 			},
 			title: items => {
-				return new Date(items[0].raw.x).toLocaleDateString();
+				let ms = items[0].raw.x;
+				let options = {
+					weekday: "short",
+					day: "numeric",
+					month: "short",
+					hour: "2-digit",
+					minute: "2-digit"
+				}
+				return new Date(ms).toLocaleDateString("de-DE", options);
 			},
 			beforeTitle: function (context) {
 				return context[0].dataset.label;