diff --git a/slack/channels.py b/slack/channels.py
index 2826697..31f7114 100644
--- a/slack/channels.py
+++ b/slack/channels.py
@@ -65,7 +65,7 @@ class Message:
         return self.__time < other.__time
 
     def __str__(self):
-        return "%s %s: %s" % (self.__time.time(), self.__user.name(), self.__text)
+        return "%s %s: %s" % (self.__time.strftime("%I:%M:%S %p "), self.__user.name(), self.__text)
 
     def ts(self):
         return self.__ts