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')