diff --git a/timetracker.py b/timetracker.py
index a969fb4..7262cd7 100755
--- a/timetracker.py
+++ b/timetracker.py
@@ -1,7 +1,6 @@
 #!/usr/bin/env python3
 
 import fileinput
-import math
 import re
 import sys
 import time
@@ -74,7 +73,7 @@ for act in sorted(start.keys()):
 
   ind[act] = delta
   gtot += delta
-  if delta <= 288:
+  if nearest(delta/3600.00) == 0:
       gtoth += 0.08
   else:
       gtoth += nearest(delta/3600.00)