diff --git a/icinga_service_notify.py b/icinga_service_notify.py
index 516e447..56c1c26 100755
--- a/icinga_service_notify.py
+++ b/icinga_service_notify.py
@@ -8,12 +8,12 @@ from datetime import datetime
 import sms_functions
 
 def assemble_sms():
-    since_date = datetime.fromtimestamp(int(os.environ.get('LONGDATETIME')))
+    since_date = os.environ.get('LONGDATETIME')
 
     str_list = []
     str_list.append("Icinga {}\n".format(os.environ.get('NOTIFICATIONTYPE')))
     str_list.append("{} [{}] is {}\n".format(os.environ.get('SERVICEDESC'), os.environ.get('HOSTALIAS'), os.environ.get('SERVICESTATE')))
-    str_list.append("at {}\n".format(since_date.strftime('%Y-%m-%dT%H:%M:%S')))
+    str_list.append("at {}\n".format(since_date))
     str_list.append("Comment: [{}] {}".format(os.environ.get('NOTIFICATIONAUTHORNAME'), os.environ.get('NOTIFICATIONCOMMENT')))
     return ''.join(str_list)