#include "sntp.h"      //

#include <ESP8266WiFi.h>  //for ESP8266
//#include <WiFi.h> //for ESP32

void setup() 
  {
	Serial.begin(115200);
	while (!Serial) { ; }		// wait for Serial port to connect. Needed for native USB port only
	Serial.println();
	WiFi.begin("YOUR SSID", "YOUR PWD");
  while (WiFi.status() != WL_CONNECTED) 
    {
    Serial.print(".");
    delay(250);
    }
  Serial.println();
  Serial.print("WiFi connected with ip ");  
  Serial.println(WiFi.localIP());
  
  sntp_set_timezone(-5); //NY
  sntp_setservername(0, "us.pool.ntp.org");
  sntp_init();
}

boolean gotUpdated = false;
void loop() 
{
  uint32_t timestamp = sntp_get_current_timestamp();
  Serial.printf("runtime: %dmS, SNTP timestamp: %dmS, DateTime: %s", millis(), timestamp, sntp_get_real_time(timestamp));
  if ( (!gotUpdated) && (timestamp > 30000) )
    {
    gotUpdated = true;
    Serial.print("  <-- NTP TIME UPDATED!!");
    }
  Serial.println();

  delay(1000);
}