diff --git a/public/react/src/modules/courses/signin/model/Createsignmodel.js b/public/react/src/modules/courses/signin/model/Createsignmodel.js
index 86662e77b..03dd9d2e4 100644
--- a/public/react/src/modules/courses/signin/model/Createsignmodel.js
+++ b/public/react/src/modules/courses/signin/model/Createsignmodel.js
@@ -274,7 +274,7 @@ const CollectionCreateForm = Form.create({ name: 'form_in_modal' })(
                   timeIntervals={1}
                   timeCaption="Time"
                   timeFormat="HH:mm"
-                  dateFormat="hh:mm"
+                  dateFormat="HH:mm"
                   getPopupContainer={trigger => trigger.parentNode}
                 />
                 )}
@@ -300,7 +300,7 @@ const CollectionCreateForm = Form.create({ name: 'form_in_modal' })(
                 maxTime={this.state.dateString===moment().format('YYYY-MM-DD')||this.state.dateString===null?moment().endOf('day').toDate():false}
                 timeCaption="Time"
                 timeFormat="HH:mm"
-                dateFormat="hh:mm"
+                dateFormat="HH:mm"
                 getPopupContainer={trigger => trigger.parentNode}
                 />
                 )}