there is no point in setting appointment in the past

smash/web/templates/appointments/add.html

@@ -144,7 +144,7 @@ New appointment for visit from {{visit_start}} to {{visit_end}}
             //SIDE CALENDAR
             addDailyPlanningCalendar('#side_calendar', true, {
                 schedulerLicenseKey: 'CC-Attribution-NonCommercial-NoDerivatives',
-                defaultDate: moment('{{visit_start}}'),
+                defaultDate: moment.max(moment('{{visit_start}}'), moment()),
                 editable: false,
                 header: {
                     left: 'prev,next today',