diff --git a/app.py b/app.py
index 8a0ddcc..573158d 100644
--- a/app.py
+++ b/app.py
@@ -801,7 +801,7 @@ def jobs_page(queued: Optional[int] = None):
     items = _jobs_payload(200)
     pre = "".join([
         (
-            f"<div class='card'><b>Job #{it['id']}</b> [{it['kind']}] · <b>{it['status']}</b> · läuft: {_fmt_elapsed(it.get('started_at') or it.get('created_at'), it.get('finished_at'))}<br>"
+            f"<div class='card'><b>Job #{it['id']}</b> [{it['kind']}] · <b>{it['status']}</b> · läuft: <span class='elapsed' data-start='{(it.get('started_at') or it.get('created_at') or '')}' data-end='{(it.get('finished_at') or '')}'>{_fmt_elapsed(it.get('started_at') or it.get('created_at'), it.get('finished_at'))}</span><br>"
             f"<small>{it['created_at']}</small><br>"
             f"<div class='row' style='margin-top:8px'>"
             + (
@@ -834,13 +834,21 @@ def jobs_page(queued: Optional[int] = None):
 <div id='jobs-status' class='hint'>Live-Update aktiv …</div>
 <div id='jobs-root'>{pre}</div>
 <script>
-function since(ts) {{
+function since(ts, endTs=null) {{
   if(!ts) return '-';
-  const s = Math.floor((Date.now()-Date.parse(ts))/1000);
+  const end = endTs ? Date.parse(endTs) : Date.now();
+  const s = Math.max(0, Math.floor((end-Date.parse(ts))/1000));
   if (s<60) return s+'s';
   const m = Math.floor(s/60); if (m<60) return m+'m '+(s%60)+'s';
   const h = Math.floor(m/60); return h+'h '+(m%60)+'m';
 }}
+function tickElapsed() {{
+  document.querySelectorAll('.elapsed').forEach(el => {{
+    const start = el.getAttribute('data-start') || '';
+    const end = el.getAttribute('data-end') || '';
+    el.textContent = since(start, end || null);
+  }});
+}}
 async function post(url) {{
   const r = await fetch(url, {{method:'POST'}});
   if(!r.ok) alert('Fehler '+r.status);
@@ -859,13 +867,16 @@ async function renderJobs() {{
       actions.push("<a href='#' class='iconbtn' onclick=\"deleteJob("+it.id+");return false;\">🗑️</a>");
       const result = it.result_document_id ? ("<a href='/document/"+it.result_document_id+"'>Ergebnis öffnen</a>") : '';
       const err = it.error ? ("<pre>"+String(it.error).replaceAll('<','&lt;')+"</pre>") : '';
-      d.innerHTML = "<b>Job #"+it.id+"</b> ["+it.kind+"] · <b>"+it.status+"</b> · läuft: "+since(it.started_at || it.created_at)+"<br><small>"+it.created_at+"</small><br>"
+      const startTs = (it.started_at || it.created_at || '');
+      const endTs = (it.finished_at || '');
+      d.innerHTML = "<b>Job #"+it.id+"</b> ["+it.kind+"] · <b>"+it.status+"</b> · läuft: <span class='elapsed' data-start='"+startTs+"' data-end='"+endTs+"'>"+since(startTs, endTs || null)+"</span><br><small>"+it.created_at+"</small><br>"
         +(it.project_name?('Projekt: '+it.project_name+'<br>'):'')
         +(it.document_title?('Dokument: '+it.document_title+'<br>'):'')
         +(it.prompt_name?('Prompt: '+it.prompt_name+'<br>'):'')
         +"<div class='row' style='margin-top:8px'>"+actions.join(' ')+" "+result+"</div>"+err;
       root.appendChild(d);
     }}
+    tickElapsed();
     document.getElementById('jobs-status').textContent = 'Live-Update aktiv';
   }} catch(e) {{
     document.getElementById('jobs-status').textContent = 'Live-Update Fehler: '+e;
@@ -873,7 +884,10 @@ async function renderJobs() {{
 }}
 async function cancelJob(id) {{ if(!confirm('Job abbrechen?')) return; await post('/jobs/'+id+'/cancel'); renderJobs(); }}
 async function deleteJob(id) {{ if(!confirm('Job löschen?')) return; await post('/jobs/'+id+'/delete'); renderJobs(); }}
-renderJobs(); setInterval(renderJobs, 5000);
+renderJobs();
+tickElapsed();
+setInterval(tickElapsed, 1000);
+setInterval(renderJobs, 5000);
 </script>
 """
     return layout("Jobs", body)