diff --git a/presupuestos.html b/presupuestos.html
index cf20f77..ce4f5fa 100644
--- a/presupuestos.html
+++ b/presupuestos.html
@@ -145,6 +145,19 @@
                     <label class="text-[10px] font-black text-slate-400 uppercase tracking-widest ml-1">Hora de llegada (Aprox) *</label>
                     <input type="time" id="apptTime" class="w-full bg-slate-50 border border-slate-200 px-4 py-3 rounded-xl text-sm font-bold outline-none focus:border-blue-500 text-blue-600">
                 </div>
+
+                <div>
+                    <label class="text-[10px] font-black text-slate-400 uppercase tracking-widest ml-1">Duración Estimada *</label>
+                    <select id="apptDuration" class="w-full bg-slate-50 border border-slate-200 px-4 py-3 rounded-xl text-sm font-bold outline-none focus:border-blue-500 text-slate-700">
+                        <option value="30">30 minutos</option>
+                        <option value="60" selected>1 hora</option>
+                        <option value="90">1 hora y media</option>
+                        <option value="120">2 horas</option>
+                        <option value="180">3 horas</option>
+                        <option value="240">4 horas</option>
+                    </select>
+                </div>
+
                 <button onclick="confirmAppointment()" id="btnConfirmAppt" class="w-full bg-emerald-500 text-white py-4 rounded-xl font-black uppercase tracking-widest shadow-md hover:bg-emerald-600 active:scale-95 transition-transform mt-4 flex items-center justify-center gap-2">
                     <i data-lucide="check-circle" class="w-5 h-5"></i> Confirmar Cita
                 </button>
@@ -763,6 +776,7 @@
             const guild_id = document.getElementById('apptGuild').value;
             const date = document.getElementById('apptDate').value;
             const time = document.getElementById('apptTime').value;
+            const duration = document.getElementById('apptDuration').value; // <-- NUEVO
 
             if (!guild_id || !date || !time) return showToast("⚠️ Gremio, Fecha y Hora son obligatorios.");
 
@@ -770,7 +784,14 @@
             btn.disabled = true;
             btn.innerHTML = '<i data-lucide="loader-2" class="w-5 h-5 animate-spin"></i> Procesando...';
 
-            const payload = { guild_id: guild_id, date: date, time: time, use_automation: false, assigned_to: 'self' };
+            const payload = { 
+                guild_id: guild_id, 
+                date: date, 
+                time: time, 
+                duration_minutes: duration, // <-- NUEVO
+                use_automation: false, 
+                assigned_to: 'self' 
+            };
 
             try {
                 const res = await fetch(`${API_URL}/budgets/${id}/convert`, {