diff --git a/www/conservancy/apps/assignment/forms.py b/www/conservancy/apps/assignment/forms.py
index a55f07a9895f980dc5df3c49147b0a55daac23fb..1497e9783ff9a12ef818fa76faa48fa6f77997eb 100644
--- a/www/conservancy/apps/assignment/forms.py
+++ b/www/conservancy/apps/assignment/forms.py
@@ -1,3 +1,5 @@
+import datetime
+
 from django import forms
 from django.core.validators import ValidationError
 from django.utils import timezone
@@ -7,7 +9,9 @@ from .terms import TERMS
 
 
 def validate_in_past(value):
-    if value > timezone.now().date():
+    # Adding a day to allow the current date anywhere on earth, regardless of
+    # the server timezone.
+    if value > timezone.now().date() + datetime.timedelta(days=1):
         raise ValidationError('Enter a date in the past')
 
 
diff --git a/www/conservancy/templates/assignment/assignment_form.html b/www/conservancy/templates/assignment/assignment_form.html
index c54355b185cd671392c78921f14af6accd466147..5ef7433866005b059a5b86655a766eaa2c654828 100644
--- a/www/conservancy/templates/assignment/assignment_form.html
+++ b/www/conservancy/templates/assignment/assignment_form.html
@@ -12,6 +12,11 @@
 
     <form id="assignment-form" action="." method="post" class="mw7">
       {% csrf_token %}
+
+      {% if form.errors %}
+        <p class="dark-red bg-washed-red pa2 ba b--red br1">Please review the errors below.</p>
+      {% endif %}
+
       {{ form.as_p }}
 
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