简单而准确的计时
课堂计时器
适合专注、学习、烹饪、运动和日常任务的清晰准确时钟。
计时器控件
剩余时间
就绪
- 声音
- 重复计时
- 保持屏幕唤醒
可靠计时，无需复杂设置。
- 设置所需时间，准备好后开始，并按需暂停、重置或全屏显示。
时钟使用真实目标时间戳，切换标签页或唤醒设备不会悄悄损失时间。
How to use the classroom timer
- Confirm the classroom preset or adjust the duration before starting.
- Press Start only when the task, class, recipe or activity is ready to begin.
- Use Pause for a real interruption, or Reset to restore the original preset.
Clear timing without distracting the class.
- Use the classroom timer for independent work, transitions, quizzes, tidy-up periods, group activities or a visible end to discussion time.
- Sound is optional, the screen can stay awake when the browser allows it, and the timer recalculates accurately after a sleeping tab.