If the sun is up, let the incense burn until dusk. At the time when you can no longer see the wrinkles on the fingers of your hand when extended out in front of you, extinguish the incense. If the birth is at night, light the incense until dawn.
若日生，則點至黃昏之際，伸手不見指紋，則將其香息之；若夜生，則點至黎明之際，伸手始見指紋，亦將其香息之。」