diff --git a/pages/admin/booking/[uuid]/bill.tsx b/pages/admin/booking/[uuid]/bill.tsx
index cf4c4f3..94f6f12 100644
--- a/pages/admin/booking/[uuid]/bill.tsx
+++ b/pages/admin/booking/[uuid]/bill.tsx
@@ -7,7 +7,7 @@ import { AdditionalCost, Bill } from '../../../../db/bill'
 import { Booking } from '../../../../db/booking'
 import { BILL_STATUS, MILAGE_TARIFS } from '../../../../db/enums'
 import { getMilageMax } from '../../../../db/index'
-import { dateFormatFrontend } from '../../../../helpers/date'
+import { daysFormatFrontend } from '../../../../helpers/date'
 import { getBillTotal } from '../../../../helpers/bill'
 import { getBookingStatus } from '../../../../helpers/booking'
 import withSession, {
@@ -181,8 +181,7 @@ export default function BookingBillPage({
           <form className="form" onSubmit={onSubmit}>
             <div>
               <strong>Buchungszeitraum:</strong>{' '}
-              {dateFormatFrontend(new Date(booking.startDate))} -{' '}
-              {dateFormatFrontend(new Date(booking.endDate))}
+              {daysFormatFrontend(booking.days)}
             </div>
             <div>
               <strong>Bucher:</strong> {booking.booker.name}
diff --git a/pages/admin/booking/[uuid]/index.tsx b/pages/admin/booking/[uuid]/index.tsx
index 24f5daf..25e85fa 100644
--- a/pages/admin/booking/[uuid]/index.tsx
+++ b/pages/admin/booking/[uuid]/index.tsx
@@ -10,7 +10,7 @@ import withSession, {
 import { getServerSideBooking } from '../../../../lib/getServerSideProps'
 import { Booking } from '../../../../db/booking'
 import { getBookingStatus } from '../../../../helpers/booking'
-import { dateFormatFrontend } from '../../../../helpers/date'
+import { daysFormatFrontend } from '../../../../helpers/date'
 import { BOOKING_STATUS } from '../../../../db/enums'
 
 export const getServerSideProps: GetServerSideProps = withSession(
@@ -83,9 +83,7 @@ export default function ShowBookingAdmin({
         <h2 className="text-3xl">Buchung {booking.uuid}</h2>
         <Calendar start={booking.startDate} end={booking.endDate} />
         <div>
-          <strong>Buchungszeitraum:</strong>{' '}
-          {dateFormatFrontend(new Date(booking.startDate))} -{' '}
-          {dateFormatFrontend(new Date(booking.endDate))}
+          <strong>Buchungszeitraum:</strong> {daysFormatFrontend(booking.days)}
         </div>
         <div>
           <strong>Bucher:</strong> {booking.booker.name}
diff --git a/pages/booking/[uuid]/index.tsx b/pages/booking/[uuid]/index.tsx
index 8dd7289..6f6dad5 100644
--- a/pages/booking/[uuid]/index.tsx
+++ b/pages/booking/[uuid]/index.tsx
@@ -4,7 +4,7 @@ import Header from '../../../components/header'
 import { getServerSideBooking } from '../../../lib/getServerSideProps'
 import { Booking } from '../../../db/booking'
 import { BOOKING_STATUS } from '../../../db/enums'
-import { dateFormatFrontend } from '../../../helpers/date'
+import { daysFormatFrontend } from '../../../helpers/date'
 import { getBookingStatus } from '../../../helpers/booking'
 
 export const getServerSideProps = getServerSideBooking
@@ -64,9 +64,7 @@ export default function ShowBooking({
           <strong>Buchungsstatus:</strong> {getBookingStatus(booking.status)}
         </div>
         <div>
-          <strong>Buchungszeitraum:</strong>{' '}
-          {dateFormatFrontend(new Date(booking.startDate))} -{' '}
-          {dateFormatFrontend(new Date(booking.endDate))}
+          <strong>Buchungszeitraum:</strong> {daysFormatFrontend(booking.days)}
         </div>
         {storingBookingError && (
           <div className="error-message flex-grow">{storingBookingError}</div>