diff --git a/apps/web/src/dashboard/app.js b/apps/web/src/dashboard/app.js
index 3a832e6..2b2bbc7 100644
--- a/apps/web/src/dashboard/app.js
+++ b/apps/web/src/dashboard/app.js
@@ -82,7 +82,13 @@ function watchAccount(onPing) {
         buf = lines.pop() ?? '';
         for (const line of lines) {
           if (line.startsWith('data: ')) {
-            try { onPing(JSON.parse(line.slice(6))); } catch {}
+            try {
+              const ping = JSON.parse(line.slice(6));
+              if (ping.checked_at && new Date(ping.checked_at).getTime() > Date.now()) {
+                ping.checked_at = new Date().toISOString();
+              }
+              onPing(ping);
+            } catch {}
           }
         }
       }
diff --git a/deploy.sh b/deploy.sh
index 978ae81..bfd8f87 100755
--- a/deploy.sh
+++ b/deploy.sh
@@ -102,6 +102,18 @@ if [ $# -eq 0 ]; then
   exit 1
 fi
 
+sync_time() {
+  echo "[sync] Syncing time on all servers..."
+  ALL_HOSTS=("$DB_HOST" "$API_HOST" "$WEB_HOST" "${MONITOR_HOSTS[@]}")
+  for host in "${ALL_HOSTS[@]}"; do
+    (
+      $SSH "$host" "chronyc makestep 2>/dev/null || ntpdate -s pool.ntp.org 2>/dev/null || timedatectl set-ntp true 2>/dev/null; echo \"$(hostname 2>/dev/null || echo $host): $(date -u +%H:%M:%S.%N)\""
+    ) &
+  done
+  wait
+  echo "[sync] All servers synced"
+}
+
 deploy_target() {
   case "$1" in
     db)      deploy_db ;;
@@ -110,8 +122,9 @@ deploy_target() {
     web)     deploy_web ;;
     monitor) deploy_monitor ;;
     nuke-db) nuke_db ;;
+    sync)    sync_time ;;
     all)     deploy_db; deploy_api; deploy_pay; deploy_web; deploy_monitor ;;
-    *)       echo "Unknown target: $1 (valid: web, api, pay, monitor, db, nuke-db, all)"; exit 1 ;;
+    *)       echo "Unknown target: $1 (valid: web, api, pay, monitor, db, nuke-db, sync, all)"; exit 1 ;;
   esac
 }