# 授業時間 for 先生 “時間割登録で先生専用の時計を設定“ > A simple app that allows teachers to check class times. Please keep an eye on it as it is still under development! Canonical page: [https://chrome-stats.com/d/com.buzzlyhan.schoolbellapp](https://chrome-stats.com/d/com.buzzlyhan.schoolbellapp) ## Overview - **ID:** `com.buzzlyhan.schoolbellapp` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** BuzzlyHan - **Category:** EDUCATION - **Downloads:** 43 - **Last updated:** 2026-08-05 - **First published:** 2026-02-06 - **Publisher country:** JP - **Data as of:** 2026-09-03 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.buzzlyhan.schoolbellapp) - **Website:** [https://itami.info/jyugyoujikan.html](https://itami.info/jyugyoujikan.html) - **Privacy policy:** [https://itami.info/privacy.html](https://itami.info/privacy.html) ## Description "Class Time for Teachers" is a simple time management app that allows teachers to "register a timetable and set a dedicated clock for the teacher,"
allowing teachers to understand the flow of their lessons at a glance.

By registering a timetable for each day of the week,
you can see the current class, next class, and remaining time on one screen.

No complicated settings or operations are required.
Just look at it or open it to tightly control class time.

This is the simplest timetable app for teachers who want to focus on their lessons.
Of course, it can also be used for all other needs.

++++ App Features ++++

[Register a Timetable by Day of the Week]
- Register different schedules for each day of the week, such as Monday through Friday.
- Freely set as many classes as needed, from the first period onwards.
- Each period consists of a "start time" and "end time," and the length of breaks is automatically reflected.

[Automatic Display of Current Period]
- Automatically calculates the current period and the remaining time until the next class.
・See at a glance how many minutes until the bell rings, even during class.

・The simple screen layout makes it easy to see, even near the blackboard.

[Notification Function Supports Lesson Progress]
・Receive sound and vibration notifications at the start and end of class.
・Set up vibration-only notifications in quiet environments.
・Easily turn notifications on/off.

[Offline Support]
・All timetable data is stored locally on the device.
・Can be used without an internet connection.
・Safe for use in environments with limited data, such as schools and training facilities.

[Simple and Easy-to-Read UI]
・Designed text size and color scheme allow for intuitive confirmation even during class.
・Minimized buttons and controls make it easy to use.
・No unnecessary settings required, making it easy for anyone to use.

[Key Features]
- Timetable settings for each day of the week
- Start and end times for each period
- Automatic display of current period
- Countdown to next class
- Notification sound and vibration settings
- Automatic data saving (on device)
- Automatic calculation of break times
- Supports overwriting special timetables

[Recommended for]
- Teachers and instructors teaching at schools and vocational schools
- Those who want to manage university lecture times
- Those who want to manage self-study and home study schedules
- Those who want to track the progress of events and seminars by time

[How to Use]
Launch the app
- Select a day of the week
- Enter the start and end times for each period
- Press the save button to complete
From then on, simply open the app and the day's timetable will automatically be displayed.
* Settings are saved on the device and will automatically load the next time you launch it.
* Built-in standard timetable data for elementary, middle, high school, and vocational schools.

[Development Background]
"Class Time for Teachers" was created from the perspective of instructors who actually teach in the classroom.
It can be surprisingly time-consuming to have to use your smartphone just to check "how many minutes left" during class.

We designed this app to eliminate that hassle by allowing teachers to see their class schedule, current period, and remaining time on a single screen.

The purpose of this app is to allow teachers to understand the current situation without any extraneous operations.

[Technical Features]
- Export/Import of JSON timetable data
- Fully offline compatible (no internet connection required)

[App Information]
- App Name: Class Time for Teachers
- Developer: buzzlyhan
- Email: buzzlyhan@gmail.com
- Compatible OS: Android 8.0 or later
- Price: Free (with ads)
- No internet connection required (data stored on device) ## Rankings - #2,300,899 — Overall ## Similar extensions and apps - [時間割 for Android](https://chrome-stats.com/d/net.sorw.tt) — 888,204 users - [교사용 시간표 2](https://chrome-stats.com/d/air.com.sciencelove.timetable) — 2,428 users - [Fulltan - 時間割アプリ](https://chrome-stats.com/d/com.icoriha.Tandoorie) — 1,000 users - [時間割: 大学や高校、学校の授業管理に。シンプルなじかんわり](https://chrome-stats.com/d/com.now.on.meet.app005_timetable.app005_timetable) — 1,090 users - [GoodTable](https://chrome-stats.com/d/com.tadano_ko_ko_sei.timetable_app) — 18 users - [Timetable Clock Widget](https://chrome-stats.com/d/com.drgny.lessonclock) — 815 users - [Simple Timetable](https://chrome-stats.com/d/app.nifu.simpletimetable) — 96,490 users, 4.50 / 5 - [時間割タイマー](https://chrome-stats.com/d/com.kenta_chikagawa.timetable_app) — 16 users - [Student Timetable (With alarm)](https://chrome-stats.com/d/com.diacruse.timetable) — 6,441 users - [Распоред на часови](https://chrome-stats.com/d/me.stefan.rasporedcasovi) — 9 users - [みんなの時間割 - 高校生&中学生の時間割アプリ](https://chrome-stats.com/d/xyz.yabuyabu.minnanojikanwari) — 10,466 users - [Class Timetable-Lesson Manager](https://chrome-stats.com/d/com.wscellbox.android.classplanner) — 30,227 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/com.buzzlyhan.schoolbellapp)