diff --git a/README.md b/README.md
index f0fd81e..c023500 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,3 @@
-
 pytchat
 =======
 
@@ -35,6 +34,7 @@ while chat.is_alive():
 ### callback mode
 ```python
 from pytchat import LiveChat
+import time
 
 chat = LiveChat("G1w62uEMZ74", callback = func)
 while chat.is_alive():
@@ -115,6 +115,11 @@ Structure of each item which got from items() function.
     <td>int</td>
     <td>unixtime milliseconds</td>
   </tr>
+  <tr>
+    <td>datetime</td>
+    <td>str</td>
+    <td></td>
+  </tr>
   <tr>
     <td>amountValue</td>
     <td>float</td>
diff --git a/pytchat/__init__.py b/pytchat/__init__.py
index 3fdf5fe..7f26001 100644
--- a/pytchat/__init__.py
+++ b/pytchat/__init__.py
@@ -2,7 +2,7 @@
 pytchat is a python library for fetching youtube live chat.
 """
 __copyright__    = 'Copyright (C) 2019 taizan-hokuto'
-__version__      = '0.0.1.5'
+__version__      = '0.0.1.6'
 __license__      = 'MIT'
 __author__       = 'taizan-hokuto'
 __author_email__ = '55448286+taizan-hokuto@users.noreply.github.com'