📆 Calendar

Calendar for Japanese national holidays. You can add and manage notes by clicking on the date. Notes are automatically saved in the browser.

年 月

Usage and Application Examples

  • Move through the calendar using the previous/next month buttons or the year/month selector.
  • The "Today" button allows you to quickly return to today's date.
  • Japanese national holidays are automatically displayed in red (also compatible with substitute holidays)
  • Click on a date to add or edit a note
  • Notes are stored in the browser's localStorage, so no registration is required

What is Calendar?

This calendar tool displays monthly views with full support for Japanese national holidays, making it perfect for planning and scheduling in Japan. Whether you're coordinating meetings, planning events, or simply checking when holidays occur, this tool provides an intuitive interface to navigate through months and years at a glance.

How to Use

The calendar opens to the current month automatically with a today button for quick reference. Navigate between months using the forward and backward arrows, or click the month/year header to access a year and month selector for faster navigation to distant dates. Days are displayed in a standard grid format, with holidays clearly marked. Simply click any date to reference it, or use the interface to plan your schedule month by month.

Use Cases

Planning business meetings: Avoid scheduling important calls or events on Japanese national holidays like New Year, Golden Week, or Obon.
• Vacation planning: Check when consecutive holidays fall to maximize time off without using excessive leave days.
• Event coordination: Identify optimal dates for launches, sales events, or announcements when fewer people are on holiday.
• Travel booking: Plan trips around major holiday periods to better understand crowd patterns and pricing variations.

Tips & Insights

Japanese holidays often create long breaks when weekends align with national holidays. Understanding Golden Week (late April to early May) and Obon (mid-August) helps with both business and personal planning. The calendar respects observed holidays when they fall on weekends, so staying aware of rescheduled dates is essential for accurate scheduling in Japan.

Frequently Asked Questions

Are Japanese holidays automatically displayed?

Yes, 16 types of holidays are automatically displayed in red: New Year's Day, Coming of Age Day, National Foundation Day, Emperor's Birthday, Vernal Equinox Day, Showa Day, Constitution Day, Midori no Hi, Children's Day, Marine Day, Mountain Day, Respect-for-the-Aged Day, Autumnal Equinox Day, Sports Day, Culture Day, and Labor Thanksgiving Day. Compensatory holidays are also supported.

Where are notes saved?

Notes are stored in the browser's localStorage. Since they are not sent to the server, your privacy is protected. However, please note that if you delete your browser data, your notes will disappear as well.

Can I also see calendars for past and future years?

Yes, you can navigate freely with the year and month selectors. You can also easily navigate using the previous/next month buttons or the "Today" button.

Are Saturdays and Sundays color-coded?

Yes, Saturdays are displayed in blue and Sundays in red. Holidays are also displayed in red, and the name of the holiday can be seen in the tooltip.

Can I use it with my smart phone?

Yes, the site is compatible with responsive design, so it can be used comfortably on smartphones and tablets.

How do I delete a note?

Click on the date to open the memo edit screen, empty the contents of the memo, and save it to delete it.

Can I export my notes to a file?

Yes, you can download all your calendar notes as a JSON file from the settings menu, allowing you to backup or transfer them to another device. This is useful for preserving important entries or migrating data.

Does the calendar work offline?

The calendar functions fully without internet after the first load, as all data is stored locally in your browser. Your notes remain accessible even if your internet connection drops.

How do I print a calendar month?

Click the print button next to the month/year selector to generate a printable version with all notes and holidays included. The print layout is optimized for standard A4 paper size.

Can I mark important dates with colors?

You can customize note colors by clicking the color picker when creating or editing a note, helping you categorize and visually organize important dates at a glance.

What happens if I clear my browser cache?

Your calendar notes are stored in browser local storage, so they will be deleted if you clear your cache. To avoid losing notes, regularly export them using the download feature.

Can I view multiple months simultaneously?

Currently, the calendar displays one month at a time for clarity, but you can quickly navigate between months using the navigation arrows to compare dates and plan ahead.