diff --git a/src/components/booking/Booking.tsx b/src/components/booking/Booking.tsx
index a58955f..f06c985 100644
--- a/src/components/booking/Booking.tsx
+++ b/src/components/booking/Booking.tsx
@@ -53,7 +53,7 @@ export const Booking: React.FC = () => {
   const [mode, setMode] = usePersistentState<BookingMode>('pulse_booking_mode', 'week');
   const [layout, setLayout] = usePersistentState<BookingLayout>('pulse_booking_layout', 'calendar');
   const [anchor, setAnchor] = useState(todayIso());
-  const [modal, setModal] = useState<{ date: string; entry?: TimeEntry | null } | null>(null);
+  const [modal, setModal] = useState<{ date: string; entry?: TimeEntry | null; template?: TimeEntry | null } | null>(null);
   const [exportOpen, setExportOpen] = useState(false);
   const [viewUserId, setViewUserId] = useState<number>(user!.id);
   const isLead = atLeast(user, 'lead');
@@ -100,6 +100,12 @@ export const Booking: React.FC = () => {
     setModal({ date: date ?? (today >= range.from && today <= range.to ? today : range.from) });
   };
 
+  /** Kopie einer Buchung als neue Buchung fuer heute; Datum ist im Dialog aenderbar. */
+  const copy = (entry: TimeEntry) => {
+    if (readOnly) return;
+    setModal({ date: today, template: entry });
+  };
+
   /*
    * Im Export stehen nur die eigenen Projekte zur Wahl - auch fuer
    * Vorgesetzte. Wer einen Nachweis fuer einen Kunden erstellt, filtert nach
@@ -228,12 +234,13 @@ export const Booking: React.FC = () => {
               <EntryList
                 entries={list}
                 onEdit={readOnly ? undefined : (entry) => setModal({ date: entry.entry_date, entry })}
+                onCopy={readOnly ? undefined : copy}
                 emptyText={`Keine Buchungen ${mode === 'week' ? 'in dieser Woche' : mode === 'month' ? 'in diesem Monat' : 'in diesem Jahr'}.`}
               />
             </Card>
           )}
           {layout === 'calendar' && mode === 'week' && (
-            <WeekView from={range.from} entries={list} readOnly={readOnly} dailyTarget={(weekly / 5) * 60} onAdd={openNew} onEdit={(entry) => !readOnly && setModal({ date: entry.entry_date, entry })} />
+            <WeekView from={range.from} entries={list} readOnly={readOnly} dailyTarget={(weekly / 5) * 60} onAdd={openNew} onEdit={(entry) => !readOnly && setModal({ date: entry.entry_date, entry })} onCopy={copy} />
           )}
           {layout === 'calendar' && mode === 'month' && (
             <MonthView
@@ -273,7 +280,16 @@ export const Booking: React.FC = () => {
       )}
 
       {modal && projects.data && (
-        <EntryModal projects={projects.data} date={modal.date} entry={modal.entry} onClose={() => setModal(null)} onSaved={() => { entries.reload(); projects.reload(); }} />
+        <EntryModal
+          key={modal.entry?.id ?? `new-${modal.template?.id ?? ''}`}
+          projects={projects.data}
+          date={modal.date}
+          entry={modal.entry}
+          template={modal.template}
+          onClose={() => setModal(null)}
+          onSaved={() => { entries.reload(); projects.reload(); }}
+          onDuplicate={copy}
+        />
       )}
       {exportOpen && (
         <ExportDialog
diff --git a/src/components/booking/EntryList.tsx b/src/components/booking/EntryList.tsx
index 8e46116..37382b3 100644
--- a/src/components/booking/EntryList.tsx
+++ b/src/components/booking/EntryList.tsx
@@ -17,8 +17,10 @@ export const EntryList: React.FC<{
   entries: TimeEntry[];
   showUser?: boolean;
   onEdit?: (entry: TimeEntry) => void;
+  /** Kopier-Knopf je Zeile: legt die Buchung als neue Buchung an. */
+  onCopy?: (entry: TimeEntry) => void;
   emptyText?: string;
-}> = ({ entries, showUser = false, onEdit, emptyText = 'Keine Buchungen im Zeitraum.' }) => {
+}> = ({ entries, showUser = false, onEdit, onCopy, emptyText = 'Keine Buchungen im Zeitraum.' }) => {
   const [sort, setSort] = useState<{ key: SortKey; dir: 1 | -1 }>({ key: 'entry_date', dir: 1 });
 
   const sorted = useMemo(() => {
@@ -79,7 +81,8 @@ export const EntryList: React.FC<{
             {head('project_display', 'Projekt', 'left', 'w-[24%]')}
             {head('task_name', 'Task', 'left')}
             {head('billable', 'Billable Zeit', 'right', 'w-[104px]')}
-            {head('non_billable', 'Non-billable Zeit', 'right', 'w-[124px] pr-4')}
+            {head('non_billable', 'Non-billable Zeit', 'right', `w-[124px] ${onCopy ? '' : 'pr-4'}`)}
+            {onCopy && <th className="w-[48px] pr-3" aria-label="Kopieren" />}
           </tr>
         </thead>
         <tbody>
@@ -93,7 +96,7 @@ export const EntryList: React.FC<{
               <tr
                 key={e.id}
                 onClick={() => onEdit?.(e)}
-                className={`animate-rise border-b border-ink-100 last:border-0 ${onEdit ? 'cursor-pointer hover:bg-brand-50/50' : 'hover:bg-ink-50'} ${
+                className={`animate-rise group border-b border-ink-100 last:border-0 ${onEdit ? 'cursor-pointer hover:bg-brand-50/50' : 'hover:bg-ink-50'} ${
                   first && i > 0 ? 'border-t border-t-ink-200' : ''
                 }`}
                 style={{ '--i': Math.min(i, 15) } as React.CSSProperties}
@@ -134,9 +137,24 @@ export const EntryList: React.FC<{
                 <td className={`tabular whitespace-nowrap px-3 py-2.5 text-right align-top font-extrabold ${bill ? 'text-ink-900' : 'text-ink-300'}`}>
                   {bill ? formatHours(bill) : '–'}
                 </td>
-                <td className={`tabular whitespace-nowrap py-2.5 pl-3 pr-4 text-right align-top font-extrabold ${non ? 'text-ink-700' : 'text-ink-300'}`}>
+                <td className={`tabular whitespace-nowrap py-2.5 pl-3 ${onCopy ? 'pr-3' : 'pr-4'} text-right align-top font-extrabold ${non ? 'text-ink-700' : 'text-ink-300'}`}>
                   {non ? formatHours(non) : '–'}
                 </td>
+                {onCopy && (
+                  <td className="py-1.5 pr-3 text-right align-top">
+                    <button
+                      onClick={(event) => {
+                        event.stopPropagation();
+                        onCopy(e);
+                      }}
+                      title="Als neue Buchung kopieren"
+                      aria-label="Buchung kopieren"
+                      className="inline-flex h-7 w-7 items-center justify-center rounded-lg text-ink-400 transition hover:bg-brand-100 hover:text-brand-700 pointer-fine:opacity-0 pointer-fine:group-hover:opacity-100 pointer-fine:focus-visible:opacity-100"
+                    >
+                      <Icon name="copy" className="h-4 w-4" />
+                    </button>
+                  </td>
+                )}
               </tr>
             );
           })}
@@ -148,7 +166,8 @@ export const EntryList: React.FC<{
             </td>
             <td className="tabular px-3 py-3 text-right">{formatHours(sum.billable + sum.non)} h gesamt</td>
             <td className="tabular px-3 py-3 text-right">{formatHours(sum.billable)}</td>
-            <td className="tabular py-3 pl-3 pr-4 text-right">{formatHours(sum.non)}</td>
+            <td className={`tabular py-3 pl-3 ${onCopy ? 'pr-3' : 'pr-4'} text-right`}>{formatHours(sum.non)}</td>
+            {onCopy && <td />}
           </tr>
         </tfoot>
       </table>
diff --git a/src/components/booking/EntryModal.tsx b/src/components/booking/EntryModal.tsx
index eb65d3b..52fbcc2 100644
--- a/src/components/booking/EntryModal.tsx
+++ b/src/components/booking/EntryModal.tsx
@@ -13,8 +13,11 @@ interface Props {
   projects: Project[];
   date: string;
   entry?: TimeEntry | null;
+  /** Vorlage fuer eine neue Buchung (Kopie): Projekt, Task, Notiz und Zeit werden uebernommen. */
+  template?: TimeEntry | null;
   onClose: () => void;
   onSaved: () => void;
+  onDuplicate?: (entry: TimeEntry) => void;
 }
 
 /** Reihenfolge wie in der Auswahlliste: nach Kunde gruppiert, innerhalb in API-Reihenfolge. */
@@ -51,19 +54,26 @@ function firstTask(project: Project | undefined): number | '' {
  * Buchungsdialog: oben Projekt, darunter Task, darunter Freitext mit der Zeit
  * rechts daneben. Die Zeit versteht "1:23" und "1,5".
  */
-export const EntryModal: React.FC<Props> = ({ projects, date: initialDate, entry, onClose, onSaved }) => {
+export const EntryModal: React.FC<Props> = ({ projects, date: initialDate, entry, template, onClose, onSaved, onDuplicate }) => {
   const { settings } = useAuth();
   const { addToast } = useToast();
   const bookable = useMemo(() => projects.filter((p) => p.is_active || p.id === entry?.project_id), [projects, entry]);
+  /*
+   * Kopie: nur uebernehmen, solange das Projekt noch buchbar ist. Ein
+   * inaktiver Task faellt ueber den Projekt-Effekt unten auf den ersten
+   * aktiven Task zurueck.
+   */
+  const copyFrom = !entry && template && bookable.some((p) => p.id === template.project_id) ? template : null;
+  const source = entry ?? copyFrom;
 
-  const [projectId, setProjectId] = useState<number | ''>(() => entry?.project_id ?? defaultProject(bookable, initialDate, settings));
+  const [projectId, setProjectId] = useState<number | ''>(() => source?.project_id ?? defaultProject(bookable, initialDate, settings));
   // Neue Buchung: erster aktiver Task des vorausgewaehlten Projekts.
   const [taskId, setTaskId] = useState<number | ''>(() =>
-    entry ? entry.task_id ?? '' : firstTask(bookable.find((p) => p.id === projectId))
+    source ? source.task_id ?? '' : firstTask(bookable.find((p) => p.id === projectId))
   );
-  const [note, setNote] = useState(entry?.note ?? '');
+  const [note, setNote] = useState(source?.note ?? '');
   const [date, setDate] = useState(entry?.entry_date ?? initialDate);
-  const [timeText, setTimeText] = useState(entry ? formatDuration(entry.minutes) : '0:00');
+  const [timeText, setTimeText] = useState(source ? formatDuration(source.minutes) : '0:00');
   const [busy, setBusy] = useState(false);
   const [confirmDelete, setConfirmDelete] = useState(false);
   const timeRef = useRef<HTMLInputElement>(null);
@@ -95,7 +105,7 @@ export const EntryModal: React.FC<Props> = ({ projects, date: initialDate, entry
   // Projekt gewechselt: passt der Task nicht mehr, den ersten Task des neuen Projekts nehmen.
   useEffect(() => {
     if (taskId && tasks.some((t) => t.id === taskId)) return;
-    if (!taskId && entry && entry.project_id === projectId) return; // bewusst ohne Task gebucht
+    if (!taskId && source && source.project_id === projectId) return; // bewusst ohne Task gebucht
     setTaskId(firstTask(project ?? undefined));
     // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [projectId]);
@@ -172,16 +182,23 @@ export const EntryModal: React.FC<Props> = ({ projects, date: initialDate, entry
   return (
     <>
       <Modal
-        title={entry ? 'Buchung bearbeiten' : 'Zeit buchen'}
+        title={entry ? 'Buchung bearbeiten' : copyFrom ? 'Buchung kopieren' : 'Zeit buchen'}
         subtitle={formatDate(date, 'long')}
         onClose={onClose}
         size="md"
         footer={
           <div className="flex items-center justify-between gap-3">
             {entry ? (
-              <Button variant="ghost" icon="trash" className="text-red-600 hover:bg-red-50" onClick={() => setConfirmDelete(true)}>
-                Löschen
-              </Button>
+              <div className="flex gap-1">
+                <Button variant="ghost" icon="trash" className="text-red-600 hover:bg-red-50" onClick={() => setConfirmDelete(true)} aria-label="Löschen">
+                  <span className="hidden sm:inline">Löschen</span>
+                </Button>
+                {onDuplicate && (
+                  <Button variant="ghost" icon="copy" onClick={() => onDuplicate(entry)} title="Als neue Buchung kopieren" aria-label="Duplizieren">
+                    <span className="hidden sm:inline">Duplizieren</span>
+                  </Button>
+                )}
+              </div>
             ) : (
               <span className="hidden text-[11px] text-ink-400 sm:block">Enter im Zeitfeld bucht · sonst Strg + Enter</span>
             )}
diff --git a/src/components/booking/WeekView.tsx b/src/components/booking/WeekView.tsx
index af6fcf7..4dd5f90 100644
--- a/src/components/booking/WeekView.tsx
+++ b/src/components/booking/WeekView.tsx
@@ -11,13 +11,14 @@ interface Props {
   dailyTarget: number;
   onAdd: (date: string) => void;
   onEdit: (entry: TimeEntry) => void;
+  onCopy: (entry: TimeEntry) => void;
 }
 
 /**
  * Wochenansicht wie ein moderner Stundenzettel: sieben Spalten, jede Buchung
  * als Karte mit Kundenfarbe. Auf dem Handy ein Tagesstreifen mit Liste.
  */
-export const WeekView: React.FC<Props> = ({ from, entries, readOnly, dailyTarget, onAdd, onEdit }) => {
+export const WeekView: React.FC<Props> = ({ from, entries, readOnly, dailyTarget, onAdd, onEdit, onCopy }) => {
   const isMobile = useIsMobile();
   const today = todayIso();
   const days = Array.from({ length: 7 }, (_, i) => addDays(from, i));
@@ -58,7 +59,7 @@ export const WeekView: React.FC<Props> = ({ from, entries, readOnly, dailyTarget
         </div>
         <div key={selected} className="space-y-2">
           {list.map((entry, i) => (
-            <EntryCard key={entry.id} entry={entry} index={i} onClick={() => onEdit(entry)} readOnly={readOnly} large />
+            <EntryCard key={entry.id} entry={entry} index={i} onClick={() => onEdit(entry)} onCopy={() => onCopy(entry)} readOnly={readOnly} large />
           ))}
           {list.length === 0 && (
             <button
@@ -102,7 +103,7 @@ export const WeekView: React.FC<Props> = ({ from, entries, readOnly, dailyTarget
             </div>
             <div className="flex flex-1 flex-col gap-2 p-2">
               {list.map((entry, j) => (
-                <EntryCard key={entry.id} entry={entry} index={j} onClick={() => onEdit(entry)} readOnly={readOnly} />
+                <EntryCard key={entry.id} entry={entry} index={j} onClick={() => onEdit(entry)} onCopy={() => onCopy(entry)} readOnly={readOnly} />
               ))}
               {!readOnly && (
                 <button
@@ -131,32 +132,52 @@ const DayMeter: React.FC<{ minutes: number; target: number }> = ({ minutes, targ
   );
 };
 
-export const EntryCard: React.FC<{ entry: TimeEntry; index: number; onClick: () => void; readOnly: boolean; large?: boolean }> = ({
+export const EntryCard: React.FC<{ entry: TimeEntry; index: number; onClick: () => void; onCopy?: () => void; readOnly: boolean; large?: boolean }> = ({
   entry,
   index,
   onClick,
+  onCopy,
   readOnly,
   large,
 }) => {
   const color = colorFor(entry.customer_id, entry.customer_color);
+  const canCopy = !readOnly && !!onCopy;
   return (
-    <button
-      onClick={onClick}
-      disabled={readOnly && !large}
-      className={`animate-rise relative w-full overflow-hidden rounded-xl border border-ink-200 bg-surface text-left transition ${
-        readOnly ? 'cursor-default' : 'hover:-translate-y-0.5 hover:border-brand-300 hover:shadow-lift'
-      } ${large ? 'p-4 pl-5' : 'p-2.5 pl-3.5'}`}
-      style={{ '--i': index } as React.CSSProperties}
-      title={`${entry.project_display}${entry.task_name ? ` · ${entry.task_name}` : ''}${entry.note ? `\n${entry.note}` : ''}`}
-    >
-      <span aria-hidden className="absolute inset-y-0 left-0 w-1.5" style={{ background: color }} />
-      <div className="flex items-start justify-between gap-2">
-        <p className={`min-w-0 font-extrabold text-ink-900 ${large ? 'text-sm' : 'line-clamp-2 text-xs leading-snug'}`}>{entry.project_display}</p>
-        <span className={`tabular shrink-0 font-extrabold text-ink-800 ${large ? 'text-lg' : 'text-xs'}`}>{formatDuration(entry.minutes)}</span>
-      </div>
-      {entry.task_name && <p className={`truncate font-semibold text-ink-500 ${large ? 'text-xs' : 'text-[11px]'}`}>{entry.task_name}</p>}
-      {entry.note && <p className={`mt-0.5 text-ink-400 ${large ? 'text-xs' : 'line-clamp-2 text-[11px] leading-snug'}`}>{entry.note}</p>}
-      {!entry.billable && <span className="mt-1 inline-block rounded-full bg-ink-100 px-1.5 text-[9px] font-bold uppercase tracking-wide text-ink-500">non-billable</span>}
-    </button>
+    // Kopier-Knopf als Geschwister der Karte - ein Button im Button ist kein gueltiges HTML.
+    <div className="group/card relative">
+      <button
+        onClick={onClick}
+        disabled={readOnly && !large}
+        className={`animate-rise relative w-full overflow-hidden rounded-xl border border-ink-200 bg-surface text-left transition ${
+          readOnly ? 'cursor-default' : 'hover:-translate-y-0.5 hover:border-brand-300 hover:shadow-lift'
+        } ${large ? 'p-4 pl-5' : 'p-2.5 pl-3.5'}`}
+        style={{ '--i': index } as React.CSSProperties}
+        title={`${entry.project_display}${entry.task_name ? ` · ${entry.task_name}` : ''}${entry.note ? `
+${entry.note}` : ''}`}
+      >
+        <span aria-hidden className="absolute inset-y-0 left-0 w-1.5" style={{ background: color }} />
+        <div className="flex items-start justify-between gap-2">
+          <p className={`min-w-0 font-extrabold text-ink-900 ${large ? 'text-sm' : 'line-clamp-2 text-xs leading-snug'}`}>{entry.project_display}</p>
+          <span className={`tabular shrink-0 font-extrabold text-ink-800 ${large ? 'text-lg' : 'text-xs'}`}>{formatDuration(entry.minutes)}</span>
+        </div>
+        <div className={canCopy && large ? 'pr-10' : ''}>
+          {entry.task_name && <p className={`truncate font-semibold text-ink-500 ${large ? 'text-xs' : 'text-[11px]'}`}>{entry.task_name}</p>}
+          {entry.note && <p className={`mt-0.5 text-ink-400 ${large ? 'text-xs' : 'line-clamp-2 text-[11px] leading-snug'}`}>{entry.note}</p>}
+          {!entry.billable && <span className="mt-1 inline-block rounded-full bg-ink-100 px-1.5 text-[9px] font-bold uppercase tracking-wide text-ink-500">non-billable</span>}
+        </div>
+      </button>
+      {canCopy && (
+        <button
+          onClick={onCopy}
+          title="Als neue Buchung kopieren"
+          aria-label="Buchung kopieren"
+          className={`absolute flex items-center justify-center rounded-lg border border-ink-200 bg-surface text-ink-500 shadow-card transition hover:border-brand-300 hover:bg-brand-50 hover:text-brand-700 pointer-fine:opacity-0 pointer-fine:group-hover/card:opacity-100 pointer-fine:focus-visible:opacity-100 ${
+            large ? 'bottom-3 right-3 h-9 w-9' : 'bottom-1.5 right-1.5 h-6 w-6'
+          }`}
+        >
+          <Icon name="copy" className={large ? 'h-4 w-4' : 'h-3.5 w-3.5'} />
+        </button>
+      )}
+    </div>
   );
 };