# 月と暦のカレンダー - 月齢・和暦 > This is a traditional Japanese calendar that allows you to see the Rokuyo (six-day cycle), Japanese calendar, 24 solar terms, moon phases, and holidays at a glance. It's easy to use for managing your schedule and also supports integration with Google Calendar. Canonical page: [https://chrome-stats.com/d/com.oltema.calender](https://chrome-stats.com/d/com.oltema.calender) ## Overview - **ID:** `com.oltema.calender` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** OltemaTraditional - **Category:** LIFESTYLE - **Downloads:** 9 - **Last updated:** 2026-07-31 - **First published:** 2026-07-31 - **Publisher country:** JP - **Data as of:** 2026-09-13 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.oltema.calender) - **Website:** [https://www.oltema-traditional.site/](https://www.oltema-traditional.site/) - **Privacy policy:** [https://www.oltema-traditional.site/Calender/PrivacyPolicy](https://www.oltema-traditional.site/Calender/PrivacyPolicy) ## Description This is a traditional Japanese calendar app.
It features three views: year, month, and day, allowing you to see the Japanese calendar, Japanese names for the months, the 24 solar terms, moon phases, and holidays at a glance.
Its simple and intuitive operation makes it easy to manage your schedule.

■Displayed Data
【Rokuyo (Six-Day Cycle)】Displays Taian, Tomobiki, Sensho, Senbu, Butsumetsu, and Shakko in the month and day views.
【Japanese Calendar and Alternative Names for Months】Displays the era name and Japanese names for the months in the header.
【24 Solar Terms】Displays seasonal milestones such as Risshun (Beginning of Spring), Shunbun (Spring Equinox), Geshi (Summer Solstice), and Toji (Winter Solstice) in the month and day views.
【Moon Phases】Displays the moon phase as an icon.
【Holidays and Substitute Holidays】Displayed in the month and day views.
The data is pre-stored in the app, but it automatically checks and updates the latest data once a month.

■Year, Month, and Day Views
・Year View: Displays 12 months in a list. The current month is highlighted with a blue frame. Tapping a month moves you to the month view. Tapping the year in the header allows you to scroll through and select the year to display.

* Monthly View: A grid starting on Sunday, with the current day displayed in a blue frame. Sundays and holidays are in red, and Saturdays are in blue. 12 traditional Japanese colors adorn the header for each month. When viewing a month other than the current one, you can return to the current month using the "To This Month" button.

* Day View: The header consolidates the Rokuyo (six-day cycle), moon phase, twenty-four solar terms, and holiday names. You can see the calendar information for that day at a glance.

* Swipe horizontally to move forward or backward.

■ Schedule Management
* Tap a date to add an event immediately.
* Supports all-day events, time-specific events, and events spanning multiple days.
* Repeat Settings: Supports daily, weekly, monthly, yearly, and custom (every N days). You can also specify an end date.
* When editing or deleting repeating events, you can choose a range from "This event only," "All events from now on," and "All."
* You can register a title, time, memo, and link URL. Appointments with a set URL can be accessed in a browser with a single tap.

* Appointments that don't fit in the monthly view are displayed with a "+" mark.

■ Integration and Deletion of Appointment Data with Google Calendar
* You can import Google Calendar appointments into the app.
* You can export appointments created in the app to Google Calendar.
* If you make changes to appointments imported from or exported to Google Calendar, the changes will be reflected in the next export.
* Synchronization is not automatic. Perform the operation manually when you want to.
* You can delete all appointment data in the app at once.
* Since exporting to Google Calendar is done via API, it may take several minutes for the data to be reflected.

■ Design
* Noto Serif JP font is used in all screens.
* Fixed to light mode (black text on a white background).
* No ads.

■ Recommended for:
* Those who want to plan their schedules while being mindful of the phases of the moon and seasonal changes.
* Those who want to manage their schedules with a simple screen.
・Those who feel familiar with the Japanese calendar and alternative names for the months.

■ About Pricing
All features are free for the first 6 months after initial launch.
After the free period ends, you can continue using the app with a one-time purchase (1000 yen).
There are no monthly fees or advertisements.

■ About Privacy
Schedule data created in the app is stored in the device's database.
Unless you use Google Calendar integration, data will not be sent externally.
All schedule data recorded on your device can be deleted. ## Rankings - #2,841,622 — Overall ## Similar extensions and apps - [江戸こよみ - 旧暦カレンダーアプリ](https://chrome-stats.com/d/com.kotobaz.edo_koyomi) - [和風六曜暦カレンダー｜旧暦・祝日・天気・大吉・日記・夢・予定](https://chrome-stats.com/d/com.koyomi.rokuyoucalendar) — 117 users - [和暦カレンダー](https://chrome-stats.com/d/jp.reiwa.calendar.reiwa_calendar) — 49 users - [暦注カレンダー](https://chrome-stats.com/d/com.studio_faust.koyomi2) — 99,041 users - [Japan Calendar](https://chrome-stats.com/d/com.iter.jpcalendar) — 79 users - [日めくり暦注カレンダー](https://chrome-stats.com/d/jp.gr.java_conf.siranet.reki) — 23,016 users - [日めくりカレンダー](https://chrome-stats.com/d/com.maroyakasoft.himekuri) — 6,223 users - [吉日カレンダー](https://chrome-stats.com/d/com.goo.powerspot.lucky_calendar) — 240 users - [ROKUYO Japanese Calendar](https://chrome-stats.com/d/jp.moshimore.android.sixdaycalendrical) — 215,002 users, 4.67 / 5 - [福暦 - 旧暦 - 月齢 - カレンダー Sample](https://chrome-stats.com/d/com.biyoubo.fukurekicalendar) — 4,984 users - [福暦カレンダー](https://chrome-stats.com/d/com.biyoubo.fukurekicalendarSample) — 78 users - [フクノヒ](https://chrome-stats.com/d/jp.it_robot.fukunohi) --- Source: [Chrome-Stats](https://chrome-stats.com/d/com.oltema.calender)