address breaking changes

components/book/dateSelect.tsx

@@ -3,19 +3,20 @@ import { BookContext } from '../../context/book'
 import InputWrapper from '../inputWrapper'
 import Input from '../input'
 import Calendar from '../calendar'
+import { dateFormatBackend } from '../../helpers/date'
 
 export default function DateSelect() {
   const { onChangeEvent, onChange, state } = useContext(BookContext)
   const { startDate, endDate } = state.formData
 
-  const today = new Date().toISOString().substring(0, 10)
+  const today = dateFormatBackend(new Date())
 
   return (
     <>
       <InputWrapper label="Datum" required>
         <Calendar
-          start={startDate}
-          end={endDate}
+          start={dateFormatBackend(startDate)}
+          end={dateFormatBackend(endDate)}
           onChange={onChange}
           className="my-6 max-w-lg"
         />
@@ -27,7 +28,7 @@ export default function DateSelect() {
             type="date"
             className=""
             name="startDate"
-            value={startDate || ''}
+            value={dateFormatBackend(startDate) || ''}
             onChange={onChangeEvent}
             min={today}
             required
@@ -40,10 +41,10 @@ export default function DateSelect() {
             type="date"
             className=""
             name="endDate"
-            value={endDate || ''}
+            value={dateFormatBackend(endDate) || ''}
             placeholder="Von"
             onChange={onChangeEvent}
-            min={startDate || today}
+            min={dateFormatBackend(startDate) || today}
           />
         </div>
       </div>