diff --git a/pyfpdb/GuiGraphViewer.py b/pyfpdb/GuiGraphViewer.py
index 8026a2c7..834817fb 100644
--- a/pyfpdb/GuiGraphViewer.py
+++ b/pyfpdb/GuiGraphViewer.py
@@ -20,7 +20,7 @@ import pygtk
 pygtk.require('2.0')
 import gtk
 import os
-from time import time
+from time import *
 #import pokereval
 
 try:
@@ -366,3 +366,31 @@ class GuiGraphViewer (threading.Thread):
 
         self.leftPanelBox.show()
         self.graphBox.show()
+
+#################################
+
+        self.db.cursor.execute("""select UNIX_TIMESTAMP(handStart) as time, id from Hands ORDER BY time""")
+        THRESHOLD = 1800
+        hands = self.db.cursor.fetchall()
+
+        times = map(lambda x:long(x[0]), hands)
+        handids = map(lambda x:int(x[1]), hands)
+        print "DEBUG: len(times) %s" %(len(times))
+        diffs = diff(times)
+        print "DEBUG: len(diffs) %s" %(len(diffs))
+        index = nonzero(diff(times) > THRESHOLD)
+        print "DEBUG: len(index[0]) %s" %(len(index[0]))
+        print "DEBUG: index %s" %(index)
+        print "DEBUG: index[0][0] %s" %(index[0][0])
+
+        total = 0
+
+        last_idx = 0
+        for i in range(len(index[0])):
+            print "Hands in session %4s: %4s  Start: %s End: %s Total: %s" %(i, index[0][i] - last_idx, strftime("%d/%m/%Y %H:%M", localtime(times[last_idx])), strftime("%d/%m/%Y %H:%M", localtime(times[index[0][i]])), times[index[0][i]] - times[last_idx])
+            total = total + (index[0][i] - last_idx)
+            last_idx = index[0][i] + 1
+
+        print "Total: ", total
+#################################
+