update time daily at 4 AM

include/display.h

@@ -82,6 +82,9 @@ namespace Display {
       static int currentHour = -1;
       if (currentHour != hour()) {
         currentHour = hour();
+        if (currentHour == 4) {
+          Ntp::updateTime();
+        }
         if (currentHour == 8) {
           Brightness::set(BRIGHTNESS_DAY);
           Wifi::reconnect();

include/ntp_time.h

@@ -14,13 +14,11 @@ namespace Ntp {
     TimeChangeRule CET = { "CET ", Last, Sun, Oct, 3, 60 };       // Central European Standard Time
     Timezone CE(CEST, CET);
 
-    time_t updateTime() {
+    void updateTime() {
         if (timeClient.forceUpdate()) {
             time_t newTime = CE.toLocal(timeClient.getEpochTime());
             setTime(newTime);
-            return newTime;
-        } else {
-            return 0;
+            Serial.println(asctime(localtime(&newTime)));
         }
     }
 

src/esp_clock.cpp

@@ -84,9 +84,7 @@ void onWifiConnected() {
   Wifi::printStatus();
   Ota::tLoop.enable();
   Mqtt::tReConnect.enable();
-  if (time_t newTime = Ntp::updateTime()) {
-    Serial.println(asctime(localtime(&newTime)));
-  }
+  Ntp::updateTime();
 }
 
 void checkWifiCallback() {