diff --git a/src/main/java/org/ntlab/citrusserver/entities/Book.java b/src/main/java/org/ntlab/citrusserver/entities/Book.java
index e6fc9a4..c182121 100644
--- a/src/main/java/org/ntlab/citrusserver/entities/Book.java
+++ b/src/main/java/org/ntlab/citrusserver/entities/Book.java
@@ -7,15 +7,18 @@
     private boolean publicity;
     private String color;
     private String accountId;
+    private String time;
 
 
-    public Book(String accountId, Integer bookId, String title, boolean publicity, String color) {
+    public Book(String accountId, Integer bookId, String title, boolean publicity, String color, String time) {
         this.accountId = accountId;
         this.bookId = bookId;
 
         this.title = title;
         this.publicity = publicity;
         this.color = color;
+        
+        this.time = time;
     }
 
 
@@ -29,4 +32,6 @@
     public int getBookId() {return bookId;}
     public void setAccountId(String a) {accountId = a;}
     public String getAccountId() {return accountId;}
+    public void setTime(String t) {time = t;}
+    public String getTime() {return time;}
 }