scCalendar(スクロールカレンダー)

scCalendar is a reference calendar extension that makes Japanese calendrical data quickly accessible: Japanese holidays, era conversions (元号換算), Rokuyō (六曜), the Chinese zodiac (干支), lunar age data, and old calendar information. Note: it is for reference only and does not create or modify events.

Navigate through Monthly, Yearly, Rokuyō, and Era views. Monthly view supports vertical scrolling for year and horizontal for month; you can customize background color/image, fonts, and the starting day of the week. You can save monthly calendar screenshots to use as iPhone wallpaper or lock screen. Long-press on the monthly view opens the native Calendar app. The extension also integrates with Apple Watch (four months view) and iOS widgets (1- or 2-month widget). Rokuyō is valid for 2000–2032; Moon age is approximate.