diff --git a/tools/esp8266/defines.h b/tools/esp8266/defines.h
index ece45946..7e6f1b77 100644
--- a/tools/esp8266/defines.h
+++ b/tools/esp8266/defines.h
@@ -13,7 +13,7 @@
 //-------------------------------------
 #define VERSION_MAJOR       0
 #define VERSION_MINOR       5
-#define VERSION_PATCH       19
+#define VERSION_PATCH       20
 
 
 //-------------------------------------
diff --git a/tools/esp8266/html/api.js b/tools/esp8266/html/api.js
index 04476f3a..c896c42b 100644
--- a/tools/esp8266/html/api.js
+++ b/tools/esp8266/html/api.js
@@ -41,13 +41,14 @@ function lbl(htmlfor, val, cl=null, id=null) {
     return e;
 }
 
-function inp(name, val, max=32, cl=["text"], id=null) {
+function inp(name, val, max=32, cl=["text"], id=null, type=null) {
     e = document.createElement('input');
     e.classList.add(...cl);
     e.name = name;
     e.value = val;
-    e.maxLength = max;
+    if(null != type) e.maxLength = max;
     if(null != id) e.id = id;
+    if(null != type) e.type = type;
     return e;
 }
 
@@ -71,9 +72,10 @@ function div(cl) {
     return e;
 }
 
-function span(val, cl) {
+function span(val, cl=null, id=null) {
     e = document.createElement('span');
     e.innerHTML = val;
-    e.classList.add(...cl);
+    if(null != cl) e.classList.add(...cl);
+    if(null != id) e.id = id;
     return e;
 }
diff --git a/tools/esp8266/html/index.html b/tools/esp8266/html/index.html
index 8bb68c01..01185a14 100644
--- a/tools/esp8266/html/index.html
+++ b/tools/esp8266/html/index.html
@@ -47,9 +47,29 @@
         </div>
         <script type="text/javascript">
             var mIntervalSet = false;
+
+            function apiCb(obj) {
+                var e = document.getElementById("apiResult");
+                if(obj["success"]) {
+                    e.innerHTML = " command excuted";
+                    getAjax("/api/index", parse);
+                }
+                else
+                    e.innerHTML = " Error: " + obj["error"];
+            }
+
+            function setTime() {
+                var date = new Date();
+                var offset = date.getTimezoneOffset() * -60;
+                var obj = new Object();
+                obj.cmd = "set_time";
+                obj.ts = parseInt(offset + (date.getTime() / 1000));
+                getAjax("/api/setup", apiCb, "POST", JSON.stringify(obj));
+            }
+
             function parseSys(obj) {
                 document.getElementById("version").innerHTML = "Git SHA: " + obj["build"] + " :: " + obj["version"];
-                document.getElementById("wifi_rssi").innerHTML = obj["wifi_rssi"];;
+                document.getElementById("wifi_rssi").innerHTML = obj["wifi_rssi"];
 
                 var date = new Date(obj["ts_now"] * 1000);
                 var up = obj["ts_uptime"];
@@ -61,7 +81,16 @@
                     + ("0"+hrs).substr(-2) + ":"
                     + ("0"+min).substr(-2) + ":"
                     + ("0"+sec).substr(-2);
-                document.getElementById("date").innerHTML = date.toLocaleString('de-DE', {timeZone: 'UTC'});
+                var dSpan = document.getElementById("date")
+                if(0 != obj["ts_now"])
+                    dSpan.innerHTML = date.toLocaleString('de-DE', {timeZone: 'UTC'});
+                else {
+                    var e = inp("set", "sync from browser", 0, ["btn"], "set", "button");
+                    dSpan.appendChild(span("NTP timeserver unreachable. "));
+                    dSpan.appendChild(e);
+                    dSpan.appendChild(span("", ["span"], "apiResult"));
+                    e.addEventListener("click", setTime);
+                }
             }
 
             function parseStat(obj) {