diff --git a/api/admin/perf-dashboard.cfm b/api/admin/perf-dashboard.cfm
index 498b00a..c89fa7e 100644
--- a/api/admin/perf-dashboard.cfm
+++ b/api/admin/perf-dashboard.cfm
@@ -129,6 +129,12 @@ let refreshTimer = null;
 
 function qs(s) { return document.querySelector(s); }
 function fmt(n) { return n == null ? '-' : Number(n).toLocaleString(); }
+function fmtDate(s) {
+  if (!s || s === 'none') return 'none';
+  var d = new Date(s.replace(' ', 'T'));
+  if (isNaN(d)) return s;
+  return d.toLocaleDateString('en-US', { month: 'short', day: 'numeric', year: 'numeric' }) + ' ' + d.toLocaleTimeString('en-US', { hour: 'numeric', minute: '2-digit', hour12: true });
+}
 function fmtMs(n) {
   if (n == null) return '-';
   n = Number(n);
@@ -191,7 +197,7 @@ async function loadAll() {
       card('Avg DB Time', s.OverallAvgDbMs || 0, 'ms') +
       card('Avg App Time', s.OverallAvgAppMs || 0, 'ms') +
       card('Avg Queries', s.OverallAvgQueries || 0, '/req') +
-      card('Data Since', s.FirstLog || 'none', '');
+      card('Data Since', fmtDate(s.FirstLog), '');
     qs('#summarySection').style.display = '';
 
     // Count table