diff --git a/include/NetTransport.h b/include/NetTransport.h
index 67ab592..9ed3856 100644
--- a/include/NetTransport.h
+++ b/include/NetTransport.h
@@ -117,6 +117,7 @@ void GotEthIF(void);
 void GetRFC3339Time(char *t);
 void GetISO8601Time(char *t);
 void StartTimeGet(void);
+void SetSystemTime(struct tm *time, const char* source);
 
 esp_err_t StartOTA(bool isManual);
 char* GetAvailVersion();
diff --git a/src/SNTP.c b/src/SNTP.c
index 25cd069..a079af7 100644
--- a/src/SNTP.c
+++ b/src/SNTP.c
@@ -134,6 +134,14 @@ void StartSystemTimer(void)
     ESP_ERROR_CHECK(esp_timer_start_periodic(system_seconds_timer, 1000000));
 }
 
+void SetSystemTime(struct tm *time, const char* source)
+{
+    time_t t = mktime(time);
+    ESP_LOGI("SNTP","Setting time: %s from thq source %s", asctime(time), source);
+    struct timeval now = { .tv_sec = t };
+    settimeofday(&now, NULL);
+}
+
 void SecondTickSystem(void *param)
 {
     ++UpTime;