How many days until the next public holiday in Korea? Most people end up searching for it online every few weeks. I built an app to answer that question in one second — and to solve a bigger problem around vacation planning that anyone working in Korea faces.
I created this because I kept struggling with the same frustration: knowing which holidays were coming up was only half the battle. The real challenge was figuring out how to strategically use my limited vacation days to create the longest possible breaks. Public holidays in Korea can shift based on lunar calendar dates and substitute days, which makes manual planning messy. I wanted something that handled all that complexity instantly.
What it does
- Shows the next holiday at a glance. Open the app and see the upcoming public holiday and how many days away it is in large, easy-to-read numbers. No scrolling through calendars.
- Recommends optimal vacation combinations. The app automatically calculates where using 1 or 2 vacation days would create the longest break. You might discover that using 2 days off can stretch into a 6-day holiday depending on where it falls against weekends and public holidays.
- Includes built-in data for 2026–2030. All Korean public holidays are pre-loaded, including lunar-based holidays like Lunar New Year and Chuseok, plus official substitute holidays. No internet required — it works offline.
- Visualizes your ideal break. Each recommended vacation combo shows exactly which days are vacation days, which are public holidays, and which are weekends, color-coded for clarity.
- Sends customized reminders. Choose which holidays matter most to you and get notifications 7 days, 3 days, or on the day itself — perfect timing to book train tickets or reserve accommodation.
The app also displays a full yearly calendar broken down by month, making it easy to see the entire landscape of coming holidays across multiple years. You can flip between years with a single tap. Dark mode is supported, and the interface is available in both Korean and English.
Everything is verified against official public holiday data, so you can trust that substitute holidays and schedule changes are accurate. No account creation or login required — it’s purely a utility that respects your privacy.
Who it’s for
This app is built specifically for people working in South Korea who want to plan their time off strategically. If you’re constantly Googling “when is the next Korean holiday,” or if you spend time trying to figure out whether using 2 vacation days could create a week-long break, this will save you that mental effort. It’s equally useful for anyone visiting Korea who needs to plan around public holidays, or people learning about Korean culture and the rhythm of the year.
You can download 한국 공휴일 D-day on the App Store now. It’s free, lightweight, and designed to be opened quickly whenever you need a fast answer about upcoming time off.
App Store에서 다운로드: 한국 공휴일 D-day
Official page: reactiveworks.dev/apps/6788042040
Update history: ahngo13.github.io
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