Method syncFromNTP

lib/hal/HalClock.cpp:152–182

}

bool HalClock::syncFromNTP() {
  if (!_available) return false;

  if (WiFi.status() != WL_CONNECTED) {
    LOG_ERR("CLK", "WiFi not connected, cannot sync NTP");
    return false;
  }

  LOG_INF("CLK", "Starting NTP sync...");
  configTzTime("UTC0", "pool.ntp.org", "time.nist.gov");

  // Wait for SNTP sync to complete (up to 5 seconds)
  constexpr int maxAttempts = 50;
  for (int i = 0; i < maxAttempts; i++) {
    if (sntp_get_sync_status() == SNTP_SYNC_STATUS_COMPLETED) {
      time_t now = time(nullptr);
      struct tm timeinfo;
      gmtime_r(&now, &timeinfo);

      if (writeTimeToRTC(timeinfo.tm_hour, timeinfo.tm_min, timeinfo.tm_sec)) {
        LOG_INF("CLK", "RTC set to %02d:%02d:%02d UTC", timeinfo.tm_hour, timeinfo.tm_min, timeinfo.tm_sec);
        return true;
      }
      return false;
    }
    delay(100);
  }

  LOG_ERR("CLK", "NTP sync timed out");
  return false;
}