diff --git a/Assets/Scenes/PhoneView.unity b/Assets/Scenes/PhoneView.unity
index 35da6ac..b71104a 100644
--- a/Assets/Scenes/PhoneView.unity
+++ b/Assets/Scenes/PhoneView.unity
@@ -924,7 +924,6 @@ MonoBehaviour:
   m_Script: {fileID: 11500000, guid: 3b41deef4ebd372d5a18eabdb00cfbb4, type: 3}
   m_Name: 
   m_EditorClassIdentifier: 
-  PicturePlayer: {fileID: 1316036595}
   Canvas: {fileID: 1202782726}
 --- !u!1 &436596783
 GameObject:
@@ -3523,6 +3522,7 @@ MonoBehaviour:
   submitNewPlayer: {fileID: 1158329299}
   listPlayersUI: {fileID: 1891690322}
   submitStartGame: {fileID: 638947073}
+  counter: {fileID: 1383251891}
   HomeConnection: {fileID: 2027556831}
   WaitingRoom: {fileID: 1590939977}
   BeforeStart: {fileID: 563000513}
@@ -4098,7 +4098,7 @@ GameObject:
   m_Icon: {fileID: 0}
   m_NavMeshLayer: 0
   m_StaticEditorFlags: 0
-  m_IsActive: 0
+  m_IsActive: 1
 --- !u!224 &1383251890
 RectTransform:
   m_ObjectHideFlags: 0
diff --git a/Assets/Scripts/DatabaseClasses/Player.cs b/Assets/Scripts/DatabaseClasses/Player.cs
index 5bb47c7..95d58bc 100644
--- a/Assets/Scripts/DatabaseClasses/Player.cs
+++ b/Assets/Scripts/DatabaseClasses/Player.cs
@@ -9,10 +9,10 @@ public class Player
 {
     public string name;
     public string id;
-    public float creationDate;
+    public double creationDate;
 
     [JsonConstructor]
-    public Player(string _name, string _id, float _creationDate)
+    public Player(string _name, string _id, double _creationDate)
     {
         name = _name;
         id = _id;
@@ -23,7 +23,7 @@ public Player(string _name, string _id, float _creationDate)
     public Player(string _name)
     {
         id = Guid.NewGuid().ToString();
-        creationDate = Time.time;
+        creationDate = DateTime.Now.ToOADate();
         SetName(_name);
     }
 
diff --git a/Assets/Scripts/GameManager.cs b/Assets/Scripts/GameManager.cs
index c04453e..bbb065f 100644
--- a/Assets/Scripts/GameManager.cs
+++ b/Assets/Scripts/GameManager.cs
@@ -6,6 +6,7 @@
 using Newtonsoft.Json;
 using TMPro;
 using UnityEngine;
+using static UnityEditor.Experimental.AssetDatabaseExperimental.AssetDatabaseCounters;
 
 /// <summary>
 /// This is the game state manager on the phone side
@@ -30,6 +31,9 @@ public class GameManager : MonoBehaviour
     public TextMeshProUGUI listPlayersUI;
     public GameObject submitStartGame;
 
+    [Header("Explanation Component")]
+    public TextMeshProUGUI counter;
+
     [Header("Pages")]
     public GameObject HomeConnection;
     public GameObject WaitingRoom;
@@ -42,6 +46,7 @@ public class GameManager : MonoBehaviour
     private DatabaseReference realtimeDB;
     public Room myRoom;
     private DatabaseReference myOnlineRoom;
+    private DateTime endOfExplanationDate = DateTime.MinValue;
 
     private void Awake()
     {
@@ -66,6 +71,20 @@ private void OnApplicationQuit()
         });
     }
 
+    private void Update()
+    {
+        if (myRoom.currentState == (int)GameState.Explanation && endOfExplanationDate != DateTime.MinValue )
+        {
+            TimeSpan duration = endOfExplanationDate - DateTime.Now;
+            counter.text = ((int)duration.TotalSeconds).ToString("D1");
+
+            if (duration.TotalMilliseconds <= 0)
+            {
+                Debug.Log("It's time to make proposition !");
+            }
+        }
+    }
+
 
     private void Initialize()
     {
@@ -117,11 +136,11 @@ public void PlayerValidateNameAndServerRoom(string _name, string _code)
             else
             {
                 myOnlineRoom = realtimeDB.Child("rooms").Child(_code);
+                //subscribe to it
+                myOnlineRoom.ValueChanged += OnRoomUpdate;
                 //if room exists, join it
                 JoinRoom(() =>
                 {
-                    //then subscribe to it
-                    myOnlineRoom.ValueChanged += OnRoomUpdate;
                     myRoom.currentState = (int)GameState.WaitingForOtherPlayersToJoin;
                     players.Add(currentPlayer);
 
@@ -270,7 +289,11 @@ private void OnRoomUpdate(object sender, ValueChangedEventArgs e)
     {
         try
         {
-            myRoom = JsonConvert.DeserializeObject<Room>(e.Snapshot.GetRawJsonValue());
+            if (e!= null)
+            {
+                myRoom = JsonConvert.DeserializeObject<Room>(e.Snapshot.GetRawJsonValue());
+                
+            }
         }
         catch (Exception ex)
         {
@@ -289,7 +312,10 @@ private void OnRoomUpdate(object sender, ValueChangedEventArgs e)
                 }
             case (int)GameState.Explanation:
                 {
-                    
+                    WaitingRoom.SetActive(false);
+                    BeforeStart.SetActive(true);
+                    endOfExplanationDate = DateTime.Now.AddSeconds(3);
+
                     break;
                 }
             case (int)GameState.MakeProposition: