Display Current Time via SNTP

esphome/energymonitor.yaml

@@ -41,6 +41,13 @@ wifi:
 
 captive_portal:
 
+time:
+  - platform: sntp
+    id: sntp_time
+    timezone: Europe/Berlin
+    servers:
+      - de.pool.ntp.org
+
 logger:
 
 api:
@@ -100,6 +107,13 @@ display:
     lambda: |-
       it.fill(Color::BLACK);
 
+      if (id(sntp_time).now().is_valid()) {
+        it.strftime(284, 10, id(font_small), Color::WHITE, TextAlign::TOP_RIGHT,
+                    "%H:%M", id(sntp_time).now());
+      } else {
+        it.printf(284, 10, id(font_small), Color::WHITE, TextAlign::TOP_RIGHT, "--:--");
+      }
+
       // Four bars show RSSI quality; a crossed outline means Wi-Fi is disconnected.
       if (id(wifi_connected)) {
         int bars = 1;