fix con zona horaria para calculo de dias

m22_planning/models/planning_slot.py

@@ -48,8 +48,8 @@ class PlanningSlot(models.Model):
 
             # Calcular los días laborables del mes completo
             real_working_days = calendar.get_work_duration_data(
-                start_of_month,
-                end_of_month,
+                timezone_datetime(start_of_month),
+                timezone_datetime(end_of_month),
                 compute_leaves=True
             )