--- a/report.py
+++ b/report.py
@@ -2,11 +2,14 @@
 import datetime
 import query
 
-parser = argparse.ArgumentParser(description='Generate report for the date specified.')
+parser = argparse.ArgumentParser(description="""Generate report for the date specified.
+                                 Start and end date default to present day.
+                                 Start time defaults to 00:00:00.
+                                 End time defaults to 23:59:59.""")
 parser.add_argument('-s','--start-date', type=str, default=datetime.datetime.strftime(datetime.date.today(), '%Y-%m-%d'), help="Start date (YYYY-MM-DD)")
 parser.add_argument('-e','--end-date', type=str, default=datetime.datetime.strftime(datetime.date.today(), '%Y-%m-%d'), help="End date (YYYY-MM-DD)")
 parser.add_argument('-S','--start-time', type=str, default = '00:00:00', help="Start time (HH:MM:SS)")
-parser.add_argument('-E','--end-time', type=str, default='23:59:59', help="Start time (HH:MM:SS)")
+parser.add_argument('-E','--end-time', type=str, default='23:59:59', help="End time (HH:MM:SS)")
 
 
 args = parser.parse_args()