diff --git a/package.json b/package.json
index f346714..0ed7e55 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,6 @@
     "@angular/platform-browser": "^12.2.10",
     "@angular/platform-browser-dynamic": "^12.2.10",
     "@angular/router": "^12.2.10",
-    "moment": "^2.29.1",
     "ng-qrcode": "^5.1.1",
     "ngx-mat-timepicker": "^12.1.0",
     "openpgp": "^4.10.10",
diff --git a/src/app/app.module.ts b/src/app/app.module.ts
index edba6ac..b840b5b 100644
--- a/src/app/app.module.ts
+++ b/src/app/app.module.ts
@@ -153,14 +153,14 @@ export class XhrInterceptor implements HttpInterceptor {
     provide: NgxMatDateAdapter,
     useClass: NgxMatMomentAdapter,
     useFactory: (i18n: I18nService) => {
-      return new NgxMatMomentAdapter(i18n.getLocale());
+      return new NgxMatMomentAdapter(i18n.getLocale(), { strict: true });
     }, deps: [ I18nService ]
   }, {
     provide: NGX_MAT_DATE_FORMATS, useFactory: (i18n: I18nService) => {
       const datetimeformat = i18n.get('format.datetime', []);
       return {
         parse: {
-          dateInput: "l, LTS"
+          dateInput: datetimeformat
         },
         display: {
           dateInput: datetimeformat,
diff --git a/src/app/pages/borrow/items/item.edit.html b/src/app/pages/borrow/items/item.edit.html
index 6d06b53..c9b2fea 100644
--- a/src/app/pages/borrow/items/item.edit.html
+++ b/src/app/pages/borrow/items/item.edit.html
@@ -90,7 +90,7 @@
       <ng-container *ngFor="let slotForm of slots.controls; let i = index">
         <div [formGroup]="slotForm" fxLayout="row wrap" fxLayoutAlign="start stretch" fxLayoutGap="24px grid">
           <mat-form-field>
-            <input matInput [ngxMatDatetimePicker]="slotStartPicker" readonly formControlName="start"
+            <input matInput [ngxMatDatetimePicker]="slotStartPicker" formControlName="start"
               placeholder="{{'borrow.items.slot.start' | i18n}}">
             <mat-datepicker-toggle matSuffix [for]="slotStartPicker"></mat-datepicker-toggle>
             <ngx-mat-datetime-picker #slotStartPicker></ngx-mat-datetime-picker>
@@ -100,7 +100,7 @@
           </mat-form-field>
 
           <mat-form-field>
-            <input matInput [ngxMatDatetimePicker]="slotEndPicker" readonly formControlName="end"
+            <input matInput [ngxMatDatetimePicker]="slotEndPicker" formControlName="end"
               placeholder="{{'borrow.items.slot.end' | i18n}}">
             <mat-datepicker-toggle matSuffix [for]="slotEndPicker"></mat-datepicker-toggle>
             <ngx-mat-datetime-picker #slotEndPicker></ngx-mat-datetime-picker>
diff --git a/src/app/pages/borrow/requests/request.edit.html b/src/app/pages/borrow/requests/request.edit.html
index f890546..c3bc44c 100644
--- a/src/app/pages/borrow/requests/request.edit.html
+++ b/src/app/pages/borrow/requests/request.edit.html
@@ -23,7 +23,7 @@
 
   <form [formGroup]="form">
     <mat-form-field>
-      <input matInput [ngxMatDatetimePicker]="startPicker" readonly formControlName="start"
+      <input matInput [ngxMatDatetimePicker]="startPicker" formControlName="start"
         placeholder="{{'borrow.request.start' | i18n}}">
       <mat-datepicker-toggle matSuffix [for]="startPicker"></mat-datepicker-toggle>
       <ngx-mat-datetime-picker #startPicker></ngx-mat-datetime-picker>
@@ -33,7 +33,7 @@
     </mat-form-field>
 
     <mat-form-field>
-      <input matInput [ngxMatDatetimePicker]="endPicker" readonly formControlName="end"
+      <input matInput [ngxMatDatetimePicker]="endPicker" formControlName="end"
         placeholder="{{'borrow.request.end' | i18n}}">
       <mat-datepicker-toggle matSuffix [for]="endPicker"></mat-datepicker-toggle>
       <ngx-mat-datetime-picker #endPicker></ngx-mat-datetime-picker>
diff --git a/src/app/pages/invites/invites.component.html b/src/app/pages/invites/invites.component.html
index fc29594..a429cd6 100644
--- a/src/app/pages/invites/invites.component.html
+++ b/src/app/pages/invites/invites.component.html
@@ -29,12 +29,12 @@
 
         <ng-container matColumnDef="starts">
             <th mat-header-cell *matHeaderCellDef> {{'invite.starts' | i18n}} </th>
-            <td mat-cell *matCellDef="let invite"> {{ invite.starts | date:datetimeformat}} </td>
+            <td mat-cell *matCellDef="let invite"> {{ invite.starts | datef:datetimeformat}} </td>
         </ng-container>
 
         <ng-container matColumnDef="expires">
             <th mat-header-cell *matHeaderCellDef> {{'invite.expires' | i18n}} </th>
-            <td mat-cell *matCellDef="let invite"> {{ invite.expires | date:datetimeformat}} </td>
+            <td mat-cell *matCellDef="let invite"> {{ invite.expires | datef:datetimeformat}} </td>
         </ng-container>
 
         <ng-container matColumnDef="link">
diff --git a/src/app/pages/jitsi/jitsi.component.html b/src/app/pages/jitsi/jitsi.component.html
index f3b4b86..178c3f3 100644
--- a/src/app/pages/jitsi/jitsi.component.html
+++ b/src/app/pages/jitsi/jitsi.component.html
@@ -35,18 +35,18 @@
 
     <ng-container matColumnDef="starts">
       <th mat-header-cell *matHeaderCellDef mat-sort-header="starts"> {{'jitsi.rooms.starts' | i18n}} </th>
-      <td mat-cell *matCellDef="let jitsiRoom">{{ jitsiRoom.starts | date:datetimeformat}} </td>
+      <td mat-cell *matCellDef="let jitsiRoom">{{ jitsiRoom.starts | datef:datetimeformat}} </td>
     </ng-container>
 
     <ng-container matColumnDef="moderationStarts">
       <th mat-header-cell *matHeaderCellDef mat-sort-header="moderationStarts"> {{'jitsi.rooms.moderationStarts' |
         i18n}} </th>
-      <td mat-cell *matCellDef="let jitsiRoom">{{ jitsiRoom.moderationStarts | date:datetimeformat}} </td>
+      <td mat-cell *matCellDef="let jitsiRoom">{{ jitsiRoom.moderationStarts | datef:datetimeformat}} </td>
     </ng-container>
 
     <ng-container matColumnDef="expires">
       <th mat-header-cell *matHeaderCellDef mat-sort-header="expires"> {{'jitsi.rooms.expires' | i18n}} </th>
-      <td mat-cell *matCellDef="let jitsiRoom"> {{ jitsiRoom.expires | date:datetimeformat}} </td>
+      <td mat-cell *matCellDef="let jitsiRoom"> {{ jitsiRoom.expires | datef:datetimeformat}} </td>
     </ng-container>
 
     <ng-container matColumnDef="moderationUrl">
@@ -107,7 +107,7 @@
         </mat-form-field>
 
         <mat-form-field>
-          <input matInput [ngxMatDatetimePicker]="startsPicker" readonly [(ngModel)]="jitsiRoom.starts" formControlName="starts"
+          <input matInput [ngxMatDatetimePicker]="startsPicker"  [(ngModel)]="jitsiRoom.starts" formControlName="starts"
             placeholder="{{'jitsi.rooms.starts' | i18n}}" (dateChange)="clearModeration(jitsiRoom)">
           <mat-datepicker-toggle matSuffix [for]="startsPicker"></mat-datepicker-toggle>
           <ngx-mat-datetime-picker #startsPicker></ngx-mat-datetime-picker>
@@ -117,7 +117,7 @@
         </mat-form-field>
 
         <mat-form-field *ngIf="jitsiRoom.starts">
-          <input matInput [ngxMatDatetimePicker]="moderationStartsPicker" readonly [(ngModel)]="jitsiRoom.moderationStarts"
+          <input matInput [ngxMatDatetimePicker]="moderationStartsPicker" [(ngModel)]="jitsiRoom.moderationStarts"
             formControlName="moderationStarts" placeholder="{{'jitsi.rooms.moderationStarts' | i18n}}">
           <mat-datepicker-toggle matSuffix [for]="moderationStartsPicker"></mat-datepicker-toggle>
           <ngx-mat-datetime-picker #moderationStartsPicker></ngx-mat-datetime-picker>
@@ -127,7 +127,7 @@
         </mat-form-field>
 
         <mat-form-field>
-          <input matInput [ngxMatDatetimePicker]="expiresPicker" readonly [(ngModel)]="jitsiRoom.expires"
+          <input matInput [ngxMatDatetimePicker]="expiresPicker" [(ngModel)]="jitsiRoom.expires"
             formControlName="expires" placeholder="{{'jitsi.rooms.expires' | i18n}}">
           <mat-datepicker-toggle matSuffix [for]="expiresPicker"></mat-datepicker-toggle>
           <ngx-mat-datetime-picker #expiresPicker></ngx-mat-datetime-picker>
diff --git a/src/app/pages/jitsi/jitsi.edit.html b/src/app/pages/jitsi/jitsi.edit.html
index 70f6f0f..5c978fe 100644
--- a/src/app/pages/jitsi/jitsi.edit.html
+++ b/src/app/pages/jitsi/jitsi.edit.html
@@ -12,7 +12,7 @@
     </mat-form-field>
 
     <mat-form-field>
-      <input matInput [ngxMatDatetimePicker]="startsPicker" readonly [(ngModel)]="jitsiRoom.starts" formControlName="starts"
+      <input matInput [ngxMatDatetimePicker]="startsPicker" [(ngModel)]="jitsiRoom.starts" formControlName="starts"
         placeholder="{{'jitsi.rooms.starts' | i18n}}" (dateChange)="clearModeration(jitsiRoom)">
       <mat-datepicker-toggle matSuffix [for]="startsPicker"></mat-datepicker-toggle>
       <ngx-mat-datetime-picker #startsPicker></ngx-mat-datetime-picker>
@@ -22,7 +22,7 @@
     </mat-form-field>
 
     <mat-form-field *ngIf="jitsiRoom.starts">
-      <input matInput [ngxMatDatetimePicker]="moderationStartsPicker" readonly [(ngModel)]="jitsiRoom.moderationStarts"
+      <input matInput [ngxMatDatetimePicker]="moderationStartsPicker" [(ngModel)]="jitsiRoom.moderationStarts"
         formControlName="moderationStarts" placeholder="{{'jitsi.rooms.moderationStarts' | i18n}}">
       <mat-datepicker-toggle matSuffix [for]="moderationStartsPicker"></mat-datepicker-toggle>
       <ngx-mat-datetime-picker #moderationStartsPicker></ngx-mat-datetime-picker>
@@ -32,7 +32,7 @@
     </mat-form-field>
 
     <mat-form-field>
-      <input matInput [ngxMatDatetimePicker]="expiresPicker" readonly [(ngModel)]="jitsiRoom.expires" formControlName="expires"
+      <input matInput [ngxMatDatetimePicker]="expiresPicker" [(ngModel)]="jitsiRoom.expires" formControlName="expires"
         placeholder="{{'jitsi.rooms.expires' | i18n}}">
       <mat-datepicker-toggle matSuffix [for]="expiresPicker"></mat-datepicker-toggle>
       <ngx-mat-datetime-picker #expiresPicker></ngx-mat-datetime-picker>
diff --git a/src/app/pages/partey/timeslots/timeslot.dialog.html b/src/app/pages/partey/timeslots/timeslot.dialog.html
index 7c5df07..8cf64b2 100644
--- a/src/app/pages/partey/timeslots/timeslot.dialog.html
+++ b/src/app/pages/partey/timeslots/timeslot.dialog.html
@@ -17,7 +17,7 @@
       <textarea [mat-autosize] matInput [value]="timeslot.secret" readonly placeholder="{{'partey.timeslots.secret' | i18n}}"></textarea>
     </mat-form-field>
     <mat-form-field>
-      <input matInput [ngxMatDatetimePicker]="startsPicker" readonly [(ngModel)]="timeslot.starts" formControlName="starts"
+      <input matInput [ngxMatDatetimePicker]="startsPicker" [(ngModel)]="timeslot.starts" formControlName="starts"
         placeholder="{{'partey.timeslots.starts' | i18n}}">
       <mat-datepicker-toggle matSuffix [for]="startsPicker"></mat-datepicker-toggle>
       <ngx-mat-datetime-picker #startsPicker></ngx-mat-datetime-picker>
@@ -26,7 +26,7 @@
       </mat-error>
     </mat-form-field>
     <mat-form-field>
-      <input matInput [ngxMatDatetimePicker]="endsPicker" readonly [(ngModel)]="timeslot.ends" formControlName="ends"
+      <input matInput [ngxMatDatetimePicker]="endsPicker" [(ngModel)]="timeslot.ends" formControlName="ends"
         placeholder="{{'partey.timeslots.ends' | i18n}}">
       <mat-datepicker-toggle matSuffix [for]="endsPicker"></mat-datepicker-toggle>
       <ngx-mat-datetime-picker #endsPicker></ngx-mat-datetime-picker>
diff --git a/src/app/pages/partey/timeslots/timeslots.component.html b/src/app/pages/partey/timeslots/timeslots.component.html
index 75d3def..de5e1c3 100644
--- a/src/app/pages/partey/timeslots/timeslots.component.html
+++ b/src/app/pages/partey/timeslots/timeslots.component.html
@@ -28,7 +28,7 @@
     </mat-select>
   </mat-form-field>
   <mat-form-field>
-    <input matInput [ngxMatDatetimePicker]="afterPicker" readonly [formControl]="afterFormControl"
+    <input matInput [ngxMatDatetimePicker]="afterPicker" [formControl]="afterFormControl"
       placeholder="{{'partey.timeslots.filter.after' | i18n}}">
     <mat-datepicker-toggle matSuffix [for]="afterPicker"></mat-datepicker-toggle>
     <ngx-mat-datetime-picker #afterPicker></ngx-mat-datetime-picker>
@@ -37,12 +37,12 @@
   <table mat-table matSort [dataSource]="timeslots.content" (matSortChange)="updateSort($event)">
     <ng-container matColumnDef="starts">
       <th mat-header-cell *matHeaderCellDef mat-sort-header="starts"> {{'partey.timeslots.starts' | i18n}} </th>
-      <td mat-cell *matCellDef="let timeslot">{{ timeslot.starts | date:datetimeformat}} </td>
+      <td mat-cell *matCellDef="let timeslot">{{ timeslot.starts | datef:datetimeformat}} </td>
     </ng-container>
 
     <ng-container matColumnDef="ends">
       <th mat-header-cell *matHeaderCellDef mat-sort-header="ends"> {{'partey.timeslots.ends' | i18n}} </th>
-      <td mat-cell *matCellDef="let timeslot"> {{ timeslot.ends | date:datetimeformat}} </td>
+      <td mat-cell *matCellDef="let timeslot"> {{ timeslot.ends | datef:datetimeformat}} </td>
     </ng-container>
 
     <ng-container matColumnDef="title">
diff --git a/src/app/pages/urlshortener/urlshortener.component.html b/src/app/pages/urlshortener/urlshortener.component.html
index 86c64e0..5625e97 100644
--- a/src/app/pages/urlshortener/urlshortener.component.html
+++ b/src/app/pages/urlshortener/urlshortener.component.html
@@ -46,7 +46,7 @@
 
     <ng-container matColumnDef="expires">
       <th mat-header-cell *matHeaderCellDef mat-sort-header="expires"> {{'urlshortener.expires' | i18n}} </th>
-      <td mat-cell *matCellDef="let shortenedUrl"> {{ shortenedUrl.expires | date:datetimeformat}} </td>
+      <td mat-cell *matCellDef="let shortenedUrl"> {{ shortenedUrl.expires | datef:datetimeformat}} </td>
     </ng-container>
 
     <ng-container matColumnDef="edit">
@@ -124,7 +124,7 @@
           </mat-form-field>
 
           <mat-form-field>
-            <input matInput [ngxMatDatetimePicker]="expiresPicker" readonly [(ngModel)]="shortenedUrl.expires"
+            <input matInput [ngxMatDatetimePicker]="expiresPicker" [(ngModel)]="shortenedUrl.expires"
               formControlName="expires" placeholder="{{'urlshortener.expires' | i18n}}">
             <mat-datepicker-toggle matSuffix [for]="expiresPicker"></mat-datepicker-toggle>
             <ngx-mat-datetime-picker #expiresPicker></ngx-mat-datetime-picker>
diff --git a/src/app/pages/urlshortener/urlshortener.edit.html b/src/app/pages/urlshortener/urlshortener.edit.html
index 40be34c..d0ec7f7 100644
--- a/src/app/pages/urlshortener/urlshortener.edit.html
+++ b/src/app/pages/urlshortener/urlshortener.edit.html
@@ -49,7 +49,7 @@
       </mat-form-field>
 
       <mat-form-field>
-        <input matInput [ngxMatDatetimePicker]="expiresPicker" readonly [(ngModel)]="shortenedUrlModel.expires"
+        <input matInput [ngxMatDatetimePicker]="expiresPicker" [(ngModel)]="shortenedUrlModel.expires"
           formControlName="expires" placeholder="{{'urlshortener.expires' | i18n}}">
         <mat-datepicker-toggle matSuffix [for]="expiresPicker"></mat-datepicker-toggle>
         <ngx-mat-datetime-picker #expiresPicker></ngx-mat-datetime-picker>
diff --git a/src/app/ui/permissions/permissions.component.html b/src/app/ui/permissions/permissions.component.html
index bba15ba..b1fbeaf 100644
--- a/src/app/ui/permissions/permissions.component.html
+++ b/src/app/ui/permissions/permissions.component.html
@@ -12,12 +12,12 @@
 
     <ng-container matColumnDef="starts">
         <th mat-header-cell *matHeaderCellDef mat-sort-header="starts"> {{'permissions.starts' | i18n}} </th>
-        <td mat-cell *matCellDef="let permission">{{permission.starts | date:datetimeformat}}</td>
+        <td mat-cell *matCellDef="let permission">{{permission.starts | datef:datetimeformat}}</td>
     </ng-container>
 
     <ng-container matColumnDef="expires">
         <th mat-header-cell *matHeaderCellDef mat-sort-header="expires"> {{'permissions.expires' | i18n}} </th>
-        <td mat-cell *matCellDef="let permission">{{permission.expires | date:datetimeformat}}</td>
+        <td mat-cell *matCellDef="let permission">{{permission.expires | datef:datetimeformat}}</td>
     </ng-container>
 
     <tr mat-header-row *matHeaderRowDef="permissionColumns"></tr>
diff --git a/src/app/ui/profilefields/profilefield.dialog.html b/src/app/ui/profilefields/profilefield.dialog.html
index f335593..27d8614 100644
--- a/src/app/ui/profilefields/profilefield.dialog.html
+++ b/src/app/ui/profilefields/profilefield.dialog.html
@@ -38,7 +38,7 @@
         </mat-error>
       </mat-form-field>
       <mat-form-field *ngSwitchCase="'DATETIME'">
-        <input matInput [ngxMatDatetimePicker]="datetimePicker" readonly [(ngModel)]="profileField.value" formControlName="value"
+        <input matInput [ngxMatDatetimePicker]="datetimePicker" [(ngModel)]="profileField.value" formControlName="value"
           placeholder="{{'profileField.value' | i18n}}">
         <mat-datepicker-toggle matSuffix [for]="datetimePicker"></mat-datepicker-toggle>
         <ngx-mat-datetime-picker #datetimePicker></ngx-mat-datetime-picker>
diff --git a/src/app/ui/profilefields/profilefields.component.html b/src/app/ui/profilefields/profilefields.component.html
index affc4b0..99fec43 100644
--- a/src/app/ui/profilefields/profilefields.component.html
+++ b/src/app/ui/profilefields/profilefields.component.html
@@ -10,9 +10,9 @@
         <td mat-cell *matCellDef="let profileField">
             <div [ngSwitch]="profileField.type">
                 <span *ngSwitchCase="'TEXT'">{{profileField.value}}</span>
-                <span *ngSwitchCase="'DATE'">{{profileField.value | date:dateformat}}</span>
-                <span *ngSwitchCase="'DATETIME'">{{profileField.value | date:datetimeformat}}</span>
-                <span *ngSwitchCase="'TIME'">{{profileField.value | date:timeformat}}</span>
+                <span *ngSwitchCase="'DATE'">{{profileField.value | datef:dateformat}}</span>
+                <span *ngSwitchCase="'DATETIME'">{{profileField.value | datef:datetimeformat}}</span>
+                <span *ngSwitchCase="'TIME'">{{profileField.value | datef:timeformat}}</span>
                 <a *ngSwitchCase="'URL'" class="accent" href="{{profileField.value}}">{{profileField.value}}</a>
                 <a *ngSwitchCase="'EMAIL'" class="accent" href="mailto:{{profileField.value}}">{{profileField.value}}</a>
                 <span *ngSwitchCase="'NUMBER'">{{profileField.value}}</span>