fix issue with lag in time checking and add timezone info

Author: davirxavier

EmberIotUtil.h

@@ -34,6 +34,8 @@
 #ifndef FIREBASE_UTIL_H
 #define FIREBASE_UTIL_H
 
+#include "EmberIotShared.h"
+
 #ifdef ESP32
 #include <WiFi.h>
 #elif ESP8266
@@ -43,6 +45,12 @@ extern "C" {
 }
 #endif
 
+namespace EmberIotShared
+{
+    unsigned long timezoneOffsetSeconds = 0;
+    unsigned long daylightSavingsOffsetSeconds = 0;
+}
+
 namespace FirePropUtil {
     inline size_t countOccurrences(const char *str, const char *sub) {
         int count = 0;
@@ -123,19 +131,26 @@ namespace FirePropUtil {
     inline void initTime()
     {
 #ifdef ESP32
-        configTime(0, 0, "pool.ntp.org");
+        configTime(EmberIotShared::timezoneOffsetSeconds, EmberIotShared::daylightSavingsOffsetSeconds, "pool.ntp.org");
 #endif
     }
 
+    bool firstCheckTime = true;
+
     inline bool isTimeInitialized()
     {
-        // if (WiFi.status() != WL_CONNECTED)
-        // {
-        //     return false;
-        // }
+        if (firstCheckTime)
+        {
+            tm time;
+            bool success = getLocalTime(&time);
+            if (success)
+            {
+                firstCheckTime = false;
+            }
+            return success;
+        }
 
-        tm time;
-        return getLocalTime(&time);
+        return true;
     }