Fix timezone issue in instructor.html

quiz/views.py

@@ -208,7 +208,7 @@ def instructor(request):
     ax1.set_ylabel('PDF')
     html_graph1 = mpld3.fig_to_html(fig1)
     quizDone = False
-    if quizInstance.end_datetime < datetime.now():
+    if quizInstance.status == "Ended":
         quizDone = True
     return render(request, 'instructor.html',{"graph": html_graph, "graph1": html_graph, "graph2": html_graph1,'quiz':quizInstance,'cribs':cribs, 'all_quizes': allquizs, 'quizDone':quizDone})