diff --git a/models.ts b/models.ts
index 426672d..0334bc7 100644
--- a/models.ts
+++ b/models.ts
@@ -4,6 +4,7 @@ export namespace ServerTypes {
     export interface Client {
         id: string;
         name: string;
+        lastJoinTime: string;
     }
     export interface Session {
         id: string;
@@ -16,7 +17,6 @@ export namespace ServerTypes {
     }
     export interface CreateSessionMsg {
         type: "CreateSession";
-        addClientId: string;
     }
     export interface UpdateClientMsg {
         type: "UpdateClient";
@@ -32,24 +32,24 @@ export namespace ServerTypes {
         clientId: string;
         sessionId: string;
         sessionOwnerId: string;
-        clientMap: { [key: string]: Client };
+        clientMap: {[key: string]: Client};
     }
     export interface ClientLeftSessionMsg {
         type: "ClientLeftSession";
         clientId: string;
         sessionId: string;
         sessionOwnerId: string;
-        clientMap: { [key: string]: Client };
+        clientMap: {[key: string]: Client};
     }
     export interface BroadcastToSessionMsg {
         type: "BroadcastToSession";
-        payload: any;
+        payload: string;
     }
     export interface BroadcastFromSessionMsg {
         type: "BroadcastFromSession";
         fromSessionOwner: boolean;
         senderId: string;
-        payload: any;
+        payload: string;
     }
     export interface ErrorMsg {
         type: "Error";
diff --git a/msg_types.go b/msg_types.go
index 6c2c23b..5e4e34f 100644
--- a/msg_types.go
+++ b/msg_types.go
@@ -26,6 +26,9 @@ func convertToTS() {
 		Add(InfoMsg{})
 
 	converter.CreateInterface = true
+	converter.ManageType(time.Time{}, typescriptify.TypeOptions{
+		TSType: "string",
+	})
 	converter.BackupDir = ""
 	tsString, err := converter.Convert(make(map[string]string))
 	if err != nil {