-2= late by 10 minutes or more
-1= late by 5-9 minutes
0= on time for session
+1= 5 min early for session
+2- 10 minutes early for session
-2= late by 10 minutes or more
-1= late by 5-9 minutes
0= on time for session
+1= 5 min early for session
+2- 10 minutes early for session