 
<translate> A minti 60 a kowace awa, faɗuwar rana ta kasance 2 * 60 = minti 120. Sararin sama yana canza launi kowane minti 10, don haka ya zama 120 / 10 = launuka 12 a faɗuwar rana ta bazara. Saboda haka amsar karshe ita ce 12. <eng> At 60 minutes per hour, the sunset was 2 * 60 = 120 minutes long. The sky changes color every 10 minutes, so it turned 120 / 10 = 12 colors over the summer sunset. So the final answer is 12. 