add Moscow time in status bar

pr133.ino

@@ -1,5 +1,6 @@
 #include <WiFi.h>
 #include <Wire.h>
+#include <time.h>
 #include <APRS-IS.h>
 #include <APRS-Decoder.h>
 #include <U8g2lib.h>
@@ -270,12 +271,17 @@ void drawSplash() {
   u8g2.sendBuffer();
 }
 
+String getTimeStr() {
+  struct tm t;
+  if (!getLocalTime(&t)) return "--:--";
+  char buf[6];
+  snprintf(buf, sizeof(buf), "%02d:%02d", t.tm_hour, t.tm_min);
+  return String(buf);
+}
+
 void drawStatusBar() {
   u8g2.setFont(u8g2_font_6x12_t_cyrillic);
-
-  String left = "APRS-IS";
-  if (!aprs.connected()) left += " ...";
-  u8g2.drawUTF8(2, 10, left.c_str());
+  u8g2.drawUTF8(2, 10, getTimeStr().c_str());
 
   String right = String(totalPackets) + "pkt";
   int rw = u8g2.getUTF8Width(right.c_str());
@@ -452,6 +458,7 @@ void setup() {
   lastPacketTime = millis();
 
   if (connectWiFi()) {
+    configTime(10800, 0, "pool.ntp.org", "time.nist.gov");
     connectAPRS();
   } else {
     // will retry in loop()
@@ -474,6 +481,7 @@ void loop() {
     if (WiFi.status() != WL_CONNECTED && millis() - lastWifiTry > 30000) {
       lastWifiTry = millis();
       connectWiFi();
+      configTime(10800, 0, "pool.ntp.org", "time.nist.gov");
     }
   }
   {