--- a/graph.py	Fri Feb 23 15:04:59 2018 +1030
+++ b/graph.py	Fri Feb 23 15:14:15 2018 +1030
@@ -66,6 +66,11 @@
     if args.days is not None and args.days < 0:
         parser.error('days must be non-negative')
 
+    # If it's before 6am then plot yesterday
+    today = datetime.date.today()
+    if datetime.datetime.now().hour < 6:
+        today -= datetime.timedelta(days = 1)
+
     selector = [args.start is not None, args.end is not None, args.days is not None]
     if selector == [True, True, False]: # Start and end
         pass
@@ -78,11 +83,11 @@
             args.days = 1
         args.start = args.end - datetime.timedelta(days = args.days)
     elif selector == [False, False, True]: # Days
-        args.end = datetime.date.today() + datetime.timedelta(days = 1)
+        args.end = today + datetime.timedelta(days = 1)
         args.end = datetime.datetime(args.end.year, args.end.month, args.end.day)
         args.start = args.end - datetime.timedelta(days = args.days)
     elif selector == [False, False, False]: # Nothing
-        args.start = datetime.date.today()
+        args.start = today
         args.start = datetime.datetime(args.start.year, args.start.month, args.start.day)
         args.end = args.start + datetime.timedelta(days = 1)
     else: