When to use public holiday in Korean
Korean: 공휴일[ gong-hyu-il ]

When to use it
A public holiday is a day when many people do not work or go to school because it is a special day in the country. In Korean, this is called 공휴일. People often stay home, travel, or spend time with family on a public holiday. You can use this word when talking about schedules, stores, school, or travel plans.
Example sentences
오늘은 공휴일이라서 집에서 쉬어요.
Today is a public holiday, so I am resting at home.
공휴일에는 학교에 안 가요.
We do not go to school on public holidays.
공휴일이라 공원이 사람이 많아요.
Because it is a public holiday, the park is crowded.
A: 내일 공휴일이에요? B: 네, 그래서 회사가 쉬어요.
A: Is tomorrow a public holiday? B: Yes, so the company is closed.
공휴일에는 이 가게가 늦게 열어요.
This store opens late on public holidays.
공휴일에 가족하고 바다에 가요.
I go to the sea with my family on a public holiday.