सानमण्डलनि फानथावगाब रोदाफोरनि दिनथिनायनिफ्राय 20 घन्टानि उनाव बे मेलानिननि माखासे आसाथिं बारलांनो जागायो।
About 20 hours after exposure to ultraviolet rays, some of this melanin begins to migrate towards the surface.