WClock年齢計算
生年月日から、今日または指定した日付での年齢を年・月・日で計算できます。
年齢を計算 ?ツール
大切な仕事のための時間を。
カウントダウン
指定日時までの日数・時間・分を表示。
日時を設定 ?日付計算
日付間の日数を計算したり、日付に日数を加減できます。
日付計算 ?ポモドーロタイマー
集中と短い休憩を交互に。4回ごとに長く休憩します。
集中セッションを開始 ?タイムボックスタイマー
1つの作業に時間制限を設定。終了したら振り返りましょう。
タイムボックスを設定 ?アイゼンハワーマトリクス
緊急度と重要度で作業を分類。実行、予定、委任、削除を決めましょう。
作業を整理 ?Choose a tool for the time question you have
Different tasks call for different ways to work with time. Measure a duration with a stopwatch, set a limit with a timer, or track a calendar milestone with a countdown. For work planning, choose your priorities before deciding how long to spend on them.
How to use this tool
- For a date question, choose the age calculator, date calculator, or event countdown.
- For focused work, choose Pomodoro for recurring work and breaks, or a timebox for one task with a fixed limit.
- For a long task list, sort it in the Eisenhower Matrix, then open a timer for the task you choose to work on.
A practical example
Sort tomorrow’s tasks in the matrix, select an important task, and give its first draft a 30-minute timebox. Use a stopwatch on a later attempt if you want to measure how long it actually takes.
Common questions
What is the difference between an alarm, a timer, and a countdown?
An alarm targets a local clock time. A timer runs for a duration such as ten minutes. An event countdown targets a date and time, while a stopwatch measures elapsed time upward from zero.
Do I need an account to use these tools?
No account is required. Tools with saved settings or records use this browser’s storage rather than an account, so records do not automatically follow you to another device.