Eight days has other meanings in Korean. In some cases, it can represent the eighth day of each month, which is a common saying. If you hear "(yeo-deol-il)" in Korean, it means the number 8. In Korea, people often use this number to remind themselves of an important event, such as paying rent and returning credit cards, so as not to forget.
In a word, 8 is a very important number in Korean, which not only represents time, but also has profound significance in Korean culture. For beginners, it is very important to know the number systems in Korean, because they are very common in daily communication. If you want to learn Korean, then eight days is a necessary vocabulary. You can better understand Korean culture by learning BaTian's usage in different situations.