diff --git a/chrono/agendas/migrations/0139_auto_20220726_1017.py b/chrono/agendas/migrations/0139_auto_20220726_1017.py
new file mode 100644
index 00000000..83f24ef1
--- /dev/null
+++ b/chrono/agendas/migrations/0139_auto_20220726_1017.py
@@ -0,0 +1,18 @@
+# Generated by Django 2.2.26 on 2022-07-26 08:17
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('agendas', '0138_sharedcustodyagenda_date_start'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='sharedcustodyagenda',
+            name='date_start',
+            field=models.DateField(verbose_name='Start'),
+        ),
+    ]
diff --git a/chrono/agendas/models.py b/chrono/agendas/models.py
index c2f45b60..c7435add 100644
--- a/chrono/agendas/models.py
+++ b/chrono/agendas/models.py
@@ -3132,7 +3132,7 @@ class SharedCustodyAgenda(models.Model):
         Person, verbose_name=_('Second guardian'), on_delete=models.CASCADE, related_name='+'
     )
     children = models.ManyToManyField(Person, related_name='agendas')
-    date_start = models.DateTimeField(_('Start'))
+    date_start = models.DateField(_('Start'))
 
     @property
     def label(self):
diff --git a/chrono/api/serializers.py b/chrono/api/serializers.py
index 3a7a2f52..93999d5a 100644
--- a/chrono/api/serializers.py
+++ b/chrono/api/serializers.py
@@ -598,9 +598,7 @@ class SharedCustodyAgendaSerializer(serializers.Serializer):
     other_guardian_id = serializers.CharField(max_length=250)
     children = PersonSerializer(many=True)
     weeks = serializers.ChoiceField(required=False, choices=['', 'even', 'odd'])
-    date_start = serializers.DateTimeField(
-        required=True, input_formats=['iso-8601', '%Y-%m-%d']
-    )  # input_formats default pas ok ?
+    date_start = serializers.DateField(required=True)
 
     settings_url = serializers.SerializerMethodField()