date picker fix

lib/screens/prescription/add_prescription_form.dart

@@ -696,11 +696,11 @@ class _PrescriptionFormWidgetState extends State<PrescriptionFormWidget> {
 
   selectDate(BuildContext context, PrescriptionViewModel model) async {
     DateTime selectedDate;
-    selectedDate = DateTime.now().add(Duration(hours: 10));
+    selectedDate = DateTime.now().add(Duration(hours: 1));
     final DateTime picked = await showDatePicker(
       context: context,
       initialDate: selectedDate,
-      firstDate: DateTime.now().add(Duration(hours: 15)),
+      firstDate: DateTime.now().add(Duration(hours: 5)),
       lastDate: DateTime(2040),
       initialEntryMode: DatePickerEntryMode.calendar,
     );