ezTime.h

I modified the following and got the result.

Fix；
#include <WiFi.h>
#include <ezTime.h>
//waitForSync（）;

result；
Time in various internet standard formats ...

ATOM: 1970-01-01T00:00:09-00:00
COOKIE: Thursday, 01-Jan-1970 00:00:09 UTC
IS8601: 1970-01-01T00:00:09-0000
RFC822: Thu, 01 Jan 70 00:00:09 -0000
RFC850: Thursday, 01-Jan-1970 00:00:09 UTC
RFC1036: Thu, 01 Jan 70 00:00:09 -0000
RFC1123: Thu, 01 Jan 70 00:00:09 -0000
RFC2822: Thu, 01 Jan 70 00:00:09 -0000
RFC3339: 1970-01-01T00:00:09-00:00
RFC3339_EXT: 1970-01-01T00:00:09.771-00:00
RSS: Thu, 01 Jan 70 00:00:09 -0000
W3C: 1970-01-01T00:00:09-00:00

... and any other format, like Thursday the 1st of January 1970, 12:00 AM

@macsbug : thank you for presenting the World Time API as alternative solution.

@Stoni99 : never mind - I am glad to read you have working code now.

Thanks
Felix

Hell@Stoni99

I'm using the World Time API.
It is good to use it according to the area.

World Time API : http://worldtimeapi.org/

Example
......

Code works - thanks!

Hello @Stoni99

your code runs fine on my M5Stack.

• what happens if you comment out waitForSync()?
• what is the log output of the crash?

Thanks
Felix

What do you mean by comment out?
I don't have log output , it just restarts.

I'm using the World Time API.
It is good to use it according to the area.

World Time API : http://worldtimeapi.org/

Example

//===========================================================
// Web WorldTime M5Stack : 2022.07.01 : macsbug
// 開発環境 : Arduino IDE 1.8.19
// : Board : ”M5Stack-Core-ESP32”
// : Board Manager : arduino-esp32 2.0.3-RC1
// Device : M5Stack
// Library : M5Stack.h , WiFi.h , HTTPClient.h
//===========================================================
// WorldTimeAPI : http://worldtimeapi.org/
// TomeZpone : https://en.wikipedia.org/wiki/List_of_tz_database_time_zones
// Tokyo : http://worldtimeapi.org/api/timezone/Asia/Bangkok
// Chicago : http://worldtimeapi.org/api/timezone/America/Chicago
//===========================================================

#include <M5Stack.h>
#include <WiFi.h>
#include <HTTPClient.h>

const char *ssid = "xxxx";// Wi-Fi access point
const char *pass = "xxxx";// Wi-Fi password
const char *WTA = "http://worldtimeapi.org/api/timezone/Asia/Bangkok"; // WTA,BANGKOK
int _year, _mon, _day, _hour, _min, _sec;

//============================================================
// WorldTime : web dada = {
// "abbreviation":"JST","client_ip":"127.0.0.0",
// "datetime":"2022-06-25T08:18:17.061071+09:00",
// "_day_of_week":6,"_day_of_year":176,"dst":false,
// "dst_from":null,"dst_offset":0,"dst_until":null,
// "raw_offset":25200"timezone":"Asia/Bangkok",
// "unixtime":1656112697,
// "utc_datetime":"2022-06-24T23:18:17.061071+00:00",
// "utc_offset":"+09:00","week_number":25}
//============================================================
void WorldTimeAPI(){
if ((WiFi.status() == WL_CONNECTED)){
HTTPClient http;
http.begin(WTA); // Specify URL
int httpCode = http.GET(); // Send GET request
if (httpCode > 0) { // If there is a reply
String web = http.getString(); // WEB Data acquisition
// Serial.print("web dada = ");Serial.println(web);

  // "datetime":"2022-06-25T08:06:30.948882+09:00",
  //  00000000001111111111222222222233333333334444
  //  01234567890123456789012345678901234567890123
  int pos = web.indexOf("datetime") + 11;    
  _year = web.substring(pos   , pos+ 4  ).toInt();
  _mon  = web.substring(pos +5, pos+ 5+2).toInt();
  _day  = web.substring(pos +8, pos+ 8+2).toInt();
  _hour = web.substring(pos+11, pos+11+2).toInt();
  _min  = web.substring(pos+14, pos+14+2).toInt();
  _sec  = web.substring(pos+17, pos+17+2).toInt();

  char ymm[12];sprintf(ymm,"%4d/%02d/%02d"   ,_year,_mon,_day);
  char hms[10];sprintf(hms,"%02d:%02d:%02d\n",_hour,_min,_sec);
  M5.Lcd.print(ymm);M5.Lcd.print(" ");M5.Lcd.println(hms);
  
}else{ Serial.println("Error on HTTP request");}
http.end();   // Free the resources

}
}

//===========================================================
void setup(){
M5.begin();
M5.Lcd.setSwapBytes(true);
M5.Lcd.setRotation(1);
M5.Lcd.fillScreen(TFT_BLUE);
M5.Lcd.setTextColor(TFT_WHITE);
M5.Lcd.setTextSize(2);
M5.Lcd.printf(" Wi-Fi Connecting to %s\n", ssid);
WiFi.begin(ssid, pass);
while (WiFi.status() != WL_CONNECTED){delay(500);M5.Lcd.print(".");}
M5.Lcd.println();
}

//===========================================================
void loop(){
WorldTimeAPI();
delay(1000);
}
//===========================================================

your code runs fine on my M5Stack.

• what happens if you comment out waitForSync()?
• what is the log output of the crash?

Thanks
Felix

#include <M5Stack.h>
#include "WiFi.h"
#include "ezTime.h"

const char *ssid = "xxxxxxxxxxx";
const char *password = "xxxxxxxxxxx";

void setup(){
//Serial.begin(115200);
M5.begin();
M5.Power.begin();
WiFi.mode(WIFI_STA);
WiFi.disconnect();
delay(100);
WiFi.begin(ssid, password);
M5.Lcd.print("Call to " + String(ssid));
while (WiFi.status() != WL_CONNECTED) {
M5.Lcd.print('.');
delay(1000);
}
M5.Lcd.println(" ");
M5.Lcd.println(WiFi.localIP());
M5.Lcd.print("Signalstearke: ");
M5.Lcd.println(WiFi.RSSI());
//server.begin();
delay(2000);
M5.Lcd.clear();

waitForSync();
M5.Lcd.println();
M5.Lcd.println("Time in various internet standard formats ...");
M5.Lcd.println();
M5.Lcd.println("ATOM: " + dateTime(ATOM));
M5.Lcd.println("COOKIE: " + dateTime(COOKIE));
M5.Lcd.println("IS8601: " + dateTime(ISO8601));
M5.Lcd.println("RFC822: " + dateTime(RFC822));
M5.Lcd.println("RFC850: " + dateTime(RFC850));
M5.Lcd.println("RFC1036: " + dateTime(RFC1036));
M5.Lcd.println("RFC1123: " + dateTime(RFC1123));
M5.Lcd.println("RFC2822: " + dateTime(RFC2822));
M5.Lcd.println("RFC3339: " + dateTime(RFC3339));
M5.Lcd.println("RFC3339_EXT: " + dateTime(RFC3339_EXT));
M5.Lcd.println("RSS: " + dateTime(RSS));
M5.Lcd.println("W3C: " + dateTime(W3C));
M5.Lcd.println();
M5.Lcd.println(" ... and any other format, like "" + dateTime("l ~t~h~e jS ~o~f F Y, g:i A") + """);
delay(6000);
}

void loop() {
events();
}

are you sure? From the description Rob developed ezTime together with M5ez for M5Stack.

What exactly doesn't work for you? Care to share your code?

Thanks
Felix