2 items
20-20-20 rule timer: every 20 min, rest your eyes for 20 seconds Reminds you to rest your eyes for 20 seconds every 20 minutes, based on the 20-20-20 rule. Click the icon to start a 20-second countdown; a beep notifies you when it's done. 20-20-20ルールに基づき、20分ごとに20秒間の目の休憩をリマインドします。アイコンをクリックすると20秒のカウントダウンが開始され、完了時にビープ音で通知します。 20-20-20 규칙에 따라 20분마다 20초간 눈 휴식을 알려줍니다. 아이콘 클릭으로 20초 카운트다운을 시작하고, 완료 시 비프음으로 알립니다.
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