Ring tongos-tongos puniki, pertama-tama butuh katentuang napikeh matahari magerak uli kangin ka kauh marginin kaja utawi kelod antuk mangamati pagerakanne- kiwa ka tengen maarti marginin kelod sane liyanan tengen ka kiwa maarti marginin kaja; utawi jadma polih nyingak bayangan matahari.
In these locations, one needs first to determine whether the sun is moving from east to west through north or south by watching its movements - left to right means it is going through south while right to left means it is going through north; or one can watch the sun's shadows.