diff --git a/app/ui.py b/app/ui.py
index 4423a98..60d3917 100644
--- a/app/ui.py
+++ b/app/ui.py
@@ -4126,7 +4126,7 @@ def system_dashboard():
             r = rec.get("result", {})
             total_freed = r.get("temp_bytes_freed", 0) + r.get("multipart_bytes_freed", 0) + r.get("orphaned_version_bytes_freed", 0)
             rec["bytes_freed_display"] = _format_bytes(total_freed)
-            rec["timestamp_display"] = datetime.fromtimestamp(rec["timestamp"], tz=dt_timezone.utc).strftime("%Y-%m-%d %H:%M UTC")
+            rec["timestamp_display"] = _format_datetime_display(datetime.fromtimestamp(rec["timestamp"], tz=dt_timezone.utc))
             gc_history_records.append(rec)
 
     checker = current_app.extensions.get("integrity")
@@ -4135,7 +4135,7 @@ def system_dashboard():
     if checker:
         raw = checker.get_history(limit=10, offset=0)
         for rec in raw:
-            rec["timestamp_display"] = datetime.fromtimestamp(rec["timestamp"], tz=dt_timezone.utc).strftime("%Y-%m-%d %H:%M UTC")
+            rec["timestamp_display"] = _format_datetime_display(datetime.fromtimestamp(rec["timestamp"], tz=dt_timezone.utc))
             integrity_history_records.append(rec)
 
     features = [
@@ -4163,6 +4163,7 @@ def system_dashboard():
         gc_history=gc_history_records,
         integrity_status=integrity_status,
         integrity_history=integrity_history_records,
+        display_timezone=current_app.config.get("DISPLAY_TIMEZONE", "UTC"),
     )
 
 
diff --git a/templates/system.html b/templates/system.html
index e351230..5138e3b 100644
--- a/templates/system.html
+++ b/templates/system.html
@@ -387,11 +387,18 @@
     return (i === 0 ? b : b.toFixed(1)) + ' ' + units[i];
   }
 
+  var _displayTimezone = {{ display_timezone|tojson }};
+
   function formatTimestamp(ts) {
     var d = new Date(ts * 1000);
-    var pad = function (n) { return n < 10 ? '0' + n : '' + n; };
-    return d.getUTCFullYear() + '-' + pad(d.getUTCMonth() + 1) + '-' + pad(d.getUTCDate()) +
-           ' ' + pad(d.getUTCHours()) + ':' + pad(d.getUTCMinutes()) + ' UTC';
+    try {
+      var opts = {year: 'numeric', month: 'short', day: '2-digit', hour: '2-digit', minute: '2-digit', hour12: false, timeZone: _displayTimezone, timeZoneName: 'short'};
+      return d.toLocaleString('en-US', opts);
+    } catch (e) {
+      var pad = function (n) { return n < 10 ? '0' + n : '' + n; };
+      return d.getUTCFullYear() + '-' + pad(d.getUTCMonth() + 1) + '-' + pad(d.getUTCDate()) +
+             ' ' + pad(d.getUTCHours()) + ':' + pad(d.getUTCMinutes()) + ' UTC';
+    }
   }
 
   var _gcHistoryIcon = '<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" viewBox="0 0 16 16">' +