diff --git a/activities/Clock.activity/css/activity.css b/activities/Clock.activity/css/activity.css
index e3129783b..8b058f584 100644
--- a/activities/Clock.activity/css/activity.css
+++ b/activities/Clock.activity/css/activity.css
@@ -56,6 +56,10 @@ canvas {
   background-image: url(../icons/write-date.svg);
 }
 
+#main-toolbar #write-seconds-button {
+  background-image: url(../icons/write-seconds.svg);
+}
+
 #main-toolbar #set-time-button {
   background-image: url(../icons/set-time.svg);
 }
diff --git a/activities/Clock.activity/icons/write-seconds.svg b/activities/Clock.activity/icons/write-seconds.svg
new file mode 100644
index 000000000..1196a657d
--- /dev/null
+++ b/activities/Clock.activity/icons/write-seconds.svg
@@ -0,0 +1,126 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   contentScriptType="text/ecmascript"
+   width="55px"
+   zoomAndPan="magnify"
+   contentStyleType="text/css"
+   height="55px"
+   preserveAspectRatio="xMidYMid meet"
+   version="1.1"
+   id="svg17"
+   sodipodi:docname="seconds-on.svg"
+   inkscape:version="1.0.1 (0767f8302a, 2020-10-17)">
+  <style
+     id="style848"></style>
+  <metadata
+     id="metadata23">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <defs
+     id="defs21" />
+  <sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="1358"
+     inkscape:window-height="829"
+     id="namedview19"
+     showgrid="false"
+     inkscape:zoom="12.690909"
+     inkscape:cx="27.5"
+     inkscape:cy="27.5"
+     inkscape:window-x="72"
+     inkscape:window-y="27"
+     inkscape:window-maximized="0"
+     inkscape:current-layer="svg17" />
+  <g
+     id="Icon">
+    <circle
+       fill="#FFFFFF"
+       r="22.5"
+       stroke-width="3.5"
+       cx="27.5"
+       cy="27.5"
+       stroke="#000000"
+       id="circle2" />
+    <line
+       fill="none"
+       x1="27.5"
+       x2="27.5"
+       y1="10"
+       y2="14"
+       stroke="#000000"
+       stroke-width="3.5"
+       id="line4" />
+    <line
+       fill="none"
+       x1="27.5"
+       x2="27.5"
+       y1="41"
+       y2="45"
+       stroke="#000000"
+       stroke-width="3.5"
+       id="line6" />
+    <line
+       fill="none"
+       x1="41"
+       x2="45"
+       y1="27.5"
+       y2="27.5"
+       stroke="#000000"
+       stroke-width="3.5"
+       id="line8" />
+    <line
+       fill="none"
+       x1="10"
+       x2="14"
+       y1="27.5"
+       y2="27.5"
+       stroke="#000000"
+       stroke-width="3.5"
+       id="line10" />
+    <line
+       stroke-linecap="round"
+       fill="none"
+       x1="37.5"
+       x2="27.5"
+       y1="14"
+       y2="27.5"
+       stroke="#000000"
+       stroke-width="3.5"
+       id="line12" />
+    <line
+       stroke-linecap="round"
+       fill="none"
+       x1="27.5"
+       x2="38"
+       y1="27.5"
+       y2="34"
+       stroke="#000000"
+       stroke-width="3.5"
+       id="line14" />
+  </g>
+  <path
+     style="fill:none;stroke:#000000;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:miter;stroke-opacity:1;stroke-miterlimit:4;stroke-dasharray:none"
+     d="M 27.5,27.5 18.070388,37.733958"
+     id="path850" />
+</svg>
diff --git a/activities/Clock.activity/index.html b/activities/Clock.activity/index.html
index c8c33c380..ffe6247c7 100644
--- a/activities/Clock.activity/index.html
+++ b/activities/Clock.activity/index.html
@@ -26,6 +26,7 @@
     <hr/>
     <button class="toolbutton" id="write-time-button" title="Write time"></button>
     <button class="toolbutton" id="write-date-button" title="Write date"></button>
+    <button class="toolbutton active" id="write-seconds-button" title="Write seconds"></button>
 		<hr/>
 		<button class="toolbutton" id="set-time-button" title="Set Time"></button>
 		<button class="toolbutton" id="set-timeGame-button" title="Set Time to target"></button>
diff --git a/activities/Clock.activity/js/activity.js b/activities/Clock.activity/js/activity.js
index e78db6598..7440e3cfa 100644
--- a/activities/Clock.activity/js/activity.js
+++ b/activities/Clock.activity/js/activity.js
@@ -38,6 +38,13 @@ define(["sugar-web/activity/activity","sugar-web/env","sugar-web/graphics/radiob
                         }else{
                             document.getElementById("write-date-button").classList.remove("active");
                         }
+                        if(data.writeSeconds){
+                            document.getElementById("write-seconds-button").classList.add("active");
+                            clock.changeWriteSeconds(true);
+                        }else{
+                            document.getElementById("write-seconds-button").classList.remove("active");
+                            clock.changeWriteSeconds(false);
+                        }
                         if(data.isSetTimeGame){
                            clock.setTimeGame = true;
 
@@ -115,6 +122,7 @@ define(["sugar-web/activity/activity","sugar-web/env","sugar-web/graphics/radiob
 
             this.writeTime = false;
             this.writeDate = false;
+            this.writeSeconds = true;
             this.setTime = false;
             this.setTimeGame = false;
             this.isDrag = false;
@@ -187,6 +195,7 @@ define(["sugar-web/activity/activity","sugar-web/env","sugar-web/graphics/radiob
             document.getElementById("nice-clock-button").title = l10n_s.get("NiceClock");
             document.getElementById("write-time-button").title = l10n_s.get("WriteTime");
             document.getElementById("write-date-button").title = l10n_s.get("WriteDate");
+            document.getElementById("write-seconds-button").title = l10n_s.get("WriteSeconds");
             document.getElementById("set-time-button").title = l10n_s.get("SetTime");
             document.getElementById("set-timeGame-button").title = l10n_s.get("SetTimeGame");
             document.getElementById("text-time").innerHTML = l10n_s.get("WhatTime");
@@ -278,6 +287,16 @@ define(["sugar-web/activity/activity","sugar-web/env","sugar-web/graphics/radiob
             this.drawBackground();
         }
 
+        Clock.prototype.changeWriteSeconds = function (writeSeconds) {
+            this.writeSeconds = writeSeconds;
+
+            this.changeWriteTime(this.writeTime);
+            this.updateSizes();
+            var date = new Date();
+            this.displayDate(date);
+            this.drawBackground();
+        }
+
         Clock.prototype.updateSizes = function () {
             var toolbarElem = document.getElementById("main-toolbar");
             var textContainerElem = document.getElementById("text-container");
@@ -345,8 +364,7 @@ define(["sugar-web/activity/activity","sugar-web/env","sugar-web/graphics/radiob
               '</span>' +
               ':<span style="color: {{ colors.minutes }}">{{ minutes }}' +
               '</span>' +
-              ':<span style="color: {{ colors.seconds }}">{{ seconds }}' +
-              '</span>' +
+              (this.writeSeconds ? ':<span style="color: {{ colors.seconds }}">{{ seconds }}</span>' : '') +
               '<span style="color: {{ colors.yellow }}">' + txt +
               '</span>'
               ;
@@ -485,7 +503,7 @@ define(["sugar-web/activity/activity","sugar-web/env","sugar-web/graphics/radiob
             ctx.clearRect(this.margin, this.margin, this.radius * 2,
                           this.radius * 2);
 
-            var handNames = ['hours', 'minutes', 'seconds'];
+            var handNames = this.writeSeconds ? ['hours', 'minutes', 'seconds'] : ['hours', 'minutes'];
             for (var i = 0; i < handNames.length; i++) {
                 var name = handNames[i];
                 ctx.lineCap = 'round';
@@ -512,7 +530,7 @@ define(["sugar-web/activity/activity","sugar-web/env","sugar-web/graphics/radiob
             ctx.clearRect(this.margin, this.margin, this.radius * 2,
                           this.radius * 2);
                           this.drawSmiley();
-            var handNames = ['hours', 'minutes', 'seconds'];
+            var handNames = this.writeSeconds ? ['hours', 'minutes', 'seconds'] : ['hours', 'minutes'];
             // tempPos is used to position circle on each hand in set time mode
             var tempPos = [0.400,0.607,0.8125];
 
@@ -694,7 +712,7 @@ define(["sugar-web/activity/activity","sugar-web/env","sugar-web/graphics/radiob
           if(this.timeToBeDisplayed['hours']==undefined){
              this.timeToBeDisplayed['hours'] = Math.floor(Math.random() * 12) + 1;
              this.timeToBeDisplayed['minutes'] = Math.floor(Math.random() * 60);
-             this.timeToBeDisplayed['seconds'] = Math.floor(Math.random() * 60);
+             this.timeToBeDisplayed['seconds'] = this.writeSeconds ? Math.floor(Math.random() * 60) : 0;
            }
           var txt = "??";
           this.displayTime(this.timeToBeDisplayed['hours'], this.timeToBeDisplayed['minutes'], this.timeToBeDisplayed['seconds'], txt);
@@ -761,6 +779,14 @@ define(["sugar-web/activity/activity","sugar-web/env","sugar-web/graphics/radiob
               clock.changeWriteDate(active);
         };
 
+        var writeSecondsButton = document.getElementById("write-seconds-button");
+        var that = this;
+        writeSecondsButton.onclick = function () {
+              this.classList.toggle('active');
+              var active = this.classList.contains('active');
+              clock.changeWriteSeconds(active);
+        };
+
         var setTimeButton = document.getElementById("set-time-button");
         setTimeButton.onclick = function () {
 
@@ -880,7 +906,7 @@ define(["sugar-web/activity/activity","sugar-web/env","sugar-web/graphics/radiob
           clock.canvasY = canvasY;
 
           if(clock.setTimeGame){
-            var handNames = ['hours', 'minutes', 'seconds'];
+            var handNames = clock.writeSeconds ? ['hours', 'minutes', 'seconds'] : ['hours', 'minutes'];
             var targetAngles = [];
 
             targetAngles.push (Math.PI / 6 * (clock.timeToBeDisplayed['hours']%12) + Math.PI / 360 * clock.timeToBeDisplayed['minutes']);
@@ -889,7 +915,7 @@ define(["sugar-web/activity/activity","sugar-web/env","sugar-web/graphics/radiob
 
 
             var ctr = 0;
-            for(var i=0;i<3;i++){
+            for(var i=0;i<handNames.length;i++){
               var name = handNames[i];
               var angle = clock.handAngles[name] % (2 * Math.PI);
               var target = targetAngles[i];
@@ -900,7 +926,7 @@ define(["sugar-web/activity/activity","sugar-web/env","sugar-web/graphics/radiob
                 ctr++;
               }
             }
-            if(ctr==3){
+            if(ctr==handNames.length){
               clock.isSmiley = true;
             }else{
               clock.isSmiley = false;
@@ -918,6 +944,7 @@ define(["sugar-web/activity/activity","sugar-web/env","sugar-web/graphics/radiob
               face : clock.face,
               writeTime : clock.writeTime,
               writeDate : clock.writeDate,
+              writeSeconds : clock.writeSeconds,
               isSetTime : clock.setTime,
               isSetTimeGame : clock.setTimeGame,
               isSmiley : clock.isSmiley,
diff --git a/activities/Clock.activity/lib/tutorial.js b/activities/Clock.activity/lib/tutorial.js
index cf1164ea1..b7f7cb22a 100644
--- a/activities/Clock.activity/lib/tutorial.js
+++ b/activities/Clock.activity/lib/tutorial.js
@@ -39,6 +39,12 @@ define(["webL10n"], function (l10n) {
 				title: l10n.get("TutoDateTitle"),
 				content: l10n.get("TutoDateContent")
 			},
+			{
+				element: "#write-seconds-button",
+				placement: "bottom",
+				title: l10n.get("TutoSecondsTitle"),
+				content: l10n.get("TutoSecondsContent")
+			},
 			{
 				element: "#set-time-button",
 				placement: "bottom",
diff --git a/activities/Clock.activity/locale.ini b/activities/Clock.activity/locale.ini
index 8b59b8909..3d23d7b32 100644
--- a/activities/Clock.activity/locale.ini
+++ b/activities/Clock.activity/locale.ini
@@ -4,6 +4,7 @@ SimpleClock=Simple Clock
 NiceClock=Nice Clock
 WriteTime=Write time
 WriteDate=Write date
+WriteSeconds=Write seconds
 SetTime=Set-Time Mode
 SetTimeGame=Set-Time-Game Mode
 WhatTime=What Time Is It?
@@ -41,6 +42,8 @@ TutoTimeTitle=Show Digital Time
 TutoTimeContent=Click this icon to also display the time in number format
 TutoDateTitle=Show Date
 TutoDateContent=Click this icon to also display the current date
+TutoSecondsTitle=Show Seconds
+TutoSecondsContent=Click this icon to display the seconds
 TutoSetTimeTitle=Set-Time Mode
 TutoSetTimeContent=Click this icon to switch to set-time mode. In this mode you could move the hands to display the hour you want
 TutoSetTimeGameTitle=Game Mode
@@ -52,6 +55,7 @@ SimpleClock=Simple Clock
 NiceClock=Nice Clock
 WriteTime=Write time
 WriteDate=Write date
+WriteSeconds=Write seconds
 SetTime=Set-Time Mode
 SetTimeGame=Set-Time-Game Mode
 WhatTime=What Time Is It?
@@ -89,6 +93,8 @@ TutoTimeTitle=Show Digital Time
 TutoTimeContent=Click this icon to also display the time in number format
 TutoDateTitle=Show Date
 TutoDateContent=Click this icon to also display the current date
+TutoSecondsTitle=Show Seconds
+TutoSecondsContent=Click this icon to display the seconds
 TutoSetTimeTitle=Set-Time Mode
 TutoSetTimeContent=Click this icon to switch to set-time mode. In this mode you could move the hands to display the hour you want
 TutoSetTimeGameTitle=Game Mode
@@ -99,6 +105,7 @@ SimpleClock=Einfache Uhr
 NiceClock=Schöne Uhr
 WriteTime=Uhrzeit schreiben
 WriteDate=Datum schreiben
+WriteSeconds=Write seconds
 WhatTime=Wie viel Uhr ist es?
 Sunday=Sonntag
 Monday=Montag
@@ -119,12 +126,34 @@ September=September
 October=Oktober
 November=November
 December=Dezember
+TutoPrev=Prev
+TutoNext=Next
+TutoEnd=End
+TutoExplainTitle=Clock Activity
+TutoExplainContent=Clock is a simple activity to learn how to read and tell the time
+TutoHandTitle = The Clock and its "hands"
+TutoHandContent = The Red, Green and Blue lines are the hands of the clock. The Blue hand tells the hour, the Green hand tells the minutes and the Red hand is the seconds
+TutoSimpleTitle=Simple Clock
+TutoSimpleContent=Click this icon to change the look of the clock into simple mode
+TutoNiceTitle=Nice Clock
+TutoNiceContent=Click this icon to change the clock look into nice mode
+TutoTimeTitle=Show Digital Time
+TutoTimeContent=Click this icon to also display the time in number format
+TutoDateTitle=Show Date
+TutoDateContent=Click this icon to also display the current date
+TutoSecondsTitle=Show Seconds
+TutoSecondsContent=Click this icon to display the seconds
+TutoSetTimeTitle=Set-Time Mode
+TutoSetTimeContent=Click this icon to switch to set-time mode. In this mode you could move the hands to display the hour you want
+TutoSetTimeGameTitle=Game Mode
+TutoSetTimeGameContent=Click this icon to switch to set-time-Game mode. In this mode, the time is displayed in number format and you have to move the hands to set it in the matching hour
 
 [en]
 SimpleClock=Simple Clock
 NiceClock=Nice Clock
 WriteTime=Write time
 WriteDate=Write date
+WriteSeconds=Write seconds
 SetTime=Set-Time Mode
 SetTimeGame=Set-Time-Game Mode
 WhatTime=What Time Is It?
@@ -162,6 +191,8 @@ TutoTimeTitle=Show Digital Time
 TutoTimeContent=Click this icon to also display the time in number format
 TutoDateTitle=Show Date
 TutoDateContent=Click this icon to also display the current date
+TutoSecondsTitle=Show Seconds
+TutoSecondsContent=Click this icon to display the seconds
 TutoSetTimeTitle=Set-Time Mode
 TutoSetTimeContent=Click this icon to switch to set-time mode. In this mode you could move the hands to display the hour you want
 TutoSetTimeGameTitle=Game Mode
@@ -172,6 +203,7 @@ SimpleClock=Horloge Simple
 NiceClock=Horloge Design
 WriteTime=Affiche l'heure
 WriteDate=Affiche la date
+WriteSeconds=Affiche les secondes
 SetTime=mode heure fixe
 SetTimeGame=Mode de jeu à heure fixe
 WhatTime=Quelle heure est-il ?
@@ -209,6 +241,8 @@ TutoTimeTitle=Heure numérique
 TutoTimeContent=Cliquez sur cette icône pour afficher également l'heure au format numérique
 TutoDateTitle=Afficher date
 TutoDateContent=Cliquez sur cette icône pour afficher également la date actuelle
+TutoSecondsTitle=Afficher secondes
+TutoSecondsContent=Cliquez sur cette icône pour afficher les secondes
 TutoSetTimeTitle=Changer l'heure
 TutoSetTimeContent=Cliquez sur cette icône pour passer en mode changement d'heure. Dans ce mode vous pouvez déplacer les aiguilles pour indiquer l'heure que vous souhaitez
 TutoSetTimeGameTitle=Devinez l'heure
@@ -219,6 +253,7 @@ SimpleClock=Zegar Prosty
 NiceClock=Śliczny Zegar
 WriteTime=Zapisz czas
 WriteDate=Zapisz datę
+WriteSeconds=Write seconds
 SetTime=modo de hora definida
 SetTimeGame=Tryb ustawiania czasu gry
 WhatTime=Która Jest Godzina?
@@ -256,6 +291,8 @@ TutoTimeTitle=Pokaż czas cyfrowy
 TutoTimeContent=Kliknij tę ikonę, aby wyświetlić czas w formacie liczbowym
 TutoDateTitle=Pokaż datę
 TutoDateContent=Kliknij tę ikonę, aby wyświetlić również bieżącą datę
+TutoSecondsTitle=Show Seconds
+TutoSecondsContent=Click this icon to display the seconds
 TutoSetTimeTitle=modo de hora definida
 TutoSetTimeContent=Kliknij tę ikonę, aby przejść do trybu ustawiania czasu
 TutoSetTimeGameTitle=Tryb ustawiania czasu gry
@@ -266,6 +303,7 @@ SimpleClock=Relógio simples
 NiceClock=Relógio bom
 WriteTime=Digite a hora
 WriteDate=Digite a data
+WriteSeconds=Write seconds
 SetTime=definir modo de hora
 SetTimeGame=Jogo de hora marcada
 WhatTime=Que horas são?
@@ -303,6 +341,8 @@ TutoTimeTitle=Mostrar hora digital
 TutoTimeContent=Clique neste ícone para exibir também a hora no formato numérico
 TutoDateTitle=Mostrar data
 TutoDateContent=Clique neste ícone para exibir a data atual
+TutoSecondsTitle=Show Seconds
+TutoSecondsContent=Click this icon to display the seconds
 TutoSetTimeTitle=definir modo de hora
 TutoSetTimeContent=Clique neste ícone para alternar para o modo de tempo definido
 TutoSetTimeGameTitle=Jogo de hora marcada