diff --git a/x3_dashboard/server.py b/x3_dashboard/server.py
index fa53f05..db67238 100644
--- a/x3_dashboard/server.py
+++ b/x3_dashboard/server.py
@@ -514,6 +514,10 @@ def build_calendar_events(states: dict[str, dict[str, Any] | None], now: dt.date
 
     all_events.sort(key=sort_key)
 
+    # Vergangene Termine herausfiltern (ab jetzt)
+    now_iso = now.isoformat()
+    all_events = [ev for ev in all_events if str(ev.get("start", "")) >= now_iso]
+
     # Blacklist: Termine mit bestimmten Stichworten ausblenden
     if blacklist_keywords:
         all_events = [ev for ev in all_events if not any(kw in str(ev.get("summary", "")).lower() for kw in blacklist_keywords)]