diff --git a/src/sections/HistoriaClinica.tsx b/src/sections/HistoriaClinica.tsx
index 3ba06d0..b2794dc 100644
--- a/src/sections/HistoriaClinica.tsx
+++ b/src/sections/HistoriaClinica.tsx
@@ -3116,6 +3116,14 @@ function SeccionPendientes({ pacienteId, internacionId, canEdit }: { pacienteId:
       return;
     }
 
+    if (horaProgramada.trim()) {
+      const timeRegex = /^(0[0-9]|1[0-9]|2[0-3]):[0-5][0-9]$/;
+      if (!timeRegex.test(horaProgramada.trim())) {
+        toast.error('La hora programada debe estar en formato de 24hs (ej: 14:30)');
+        return;
+      }
+    }
+
     try {
       const payload: Partial<Pendiente> = {
         descripcion,
@@ -3428,11 +3436,18 @@ function SeccionPendientes({ pacienteId, internacionId, canEdit }: { pacienteId:
                 />
               </div>
               <div>
-                <Label className="text-xs font-medium">Hora Programada</Label>
+                <Label className="text-xs font-medium">Hora Programada (24hs)</Label>
                 <Input
-                  type="time"
+                  type="text"
+                  placeholder="HH:MM (ej. 14:30)"
                   value={horaProgramada}
-                  onChange={e => setHoraProgramada(e.target.value)}
+                  onChange={e => {
+                    let val = e.target.value;
+                    val = val.replace(/[^0-9:]/g, '');
+                    if (val.length <= 5) {
+                      setHoraProgramada(val);
+                    }
+                  }}
                   className="mt-1 h-9 text-xs"
                 />
               </div>