mici setup: get time immediately after internet (#37565)

* should be instant

* guard on disconnect

* just time fix

system/ui/mici_setup.py

@@ -1,6 +1,7 @@
 #!/usr/bin/env python3
 import os
 import re
+import ssl
 import threading
 import time
 import urllib.request
@@ -16,6 +17,7 @@ from openpilot.common.filter_simple import FirstOrderFilter
 from openpilot.system.hardware import HARDWARE, TICI
 from openpilot.common.realtime import config_realtime_process, set_core_affinity
 from openpilot.common.swaglog import cloudlog
+from openpilot.common.time_helpers import system_time_valid
 from openpilot.common.utils import run_cmd
 from openpilot.system.ui.lib.application import gui_app, FontWeight
 from openpilot.system.ui.lib.wifi_manager import WifiManager
@@ -55,6 +57,7 @@ class NetworkConnectivityMonitor:
     self.wifi_connected = threading.Event()
     self._should_check = should_check or (lambda: True)
     self._stop_event = threading.Event()
+    self._last_timesyncd_restart = 0.0
     self._thread: threading.Thread | None = None
 
   def start(self):
@@ -82,6 +85,13 @@ class NetworkConnectivityMonitor:
           self.network_connected.set()
           if HARDWARE.get_network_type() == NetworkType.wifi:
             self.wifi_connected.set()
+        except urllib.error.URLError as e:
+          if (isinstance(e.reason, ssl.SSLCertVerificationError) and
+              not system_time_valid() and
+              time.monotonic() - self._last_timesyncd_restart > 5):
+            self._last_timesyncd_restart = time.monotonic()
+            run_cmd(["sudo", "systemctl", "restart", "systemd-timesyncd"])
+          self.reset()
         except Exception:
           self.reset()
       else: