ESP32 Time Library Sync Interval

Projects Programming
2

I found the answer. it appears that it does work as I suspect. SNTP ESP32 info

An application with this initialization code will periodically synchronize the time. The time synchronization period is determined by CONFIG_LWIP_SNTP_UPDATE_DELAY (default value is one hour). To modify the variable, set CONFIG_LWIP_SNTP_UPDATE_DELAY in project configuration.

and in the arduino ESP32 module the config time calls the init function.

void configTime(long gmtOffset_sec, int daylightOffset_sec, const char* server1, const char* server2, const char* server3)
{
    //tcpip_adapter_init();  // Should not hurt anything if already inited
    esp_netif_init();
    if(sntp_enabled()){
        sntp_stop();
    }
    sntp_setoperatingmode(SNTP_OPMODE_POLL);
    sntp_setservername(0, (char*)server1);
    sntp_setservername(1, (char*)server2);
    sntp_setservername(2, (char*)server3);
    sntp_init();
    setTimeZone(-gmtOffset_sec, daylightOffset_sec);
}