diff --git a/solarconditions.py b/solarconditions.py
index 4d520a1..c106d8d 100644
--- a/solarconditions.py
+++ b/solarconditions.py
@@ -7,6 +7,7 @@ import xml.dom.minidom
 from datetime import timedelta
 from dateutil import tz # pip install python-dateutil
 from suntime import Sun, SunTimeException # pip install suntime
+import datetime # pip install datetime
 
 LATITUDE = 48.50
 LONGITUDE = -123.0