目覚まし時計・ストップウォッチ・タイマー
概要 目覚まし時計・ストップウォッチ・タイマー
アラームの設定、ストップウォッチでの計測、タイマーでのカウントダウン、世界時計の確認ができます - ブラウザ上で無料でご利用いただけます。--:--:--
World Clock
Drag the hour and minute hands to set a time and toggle AM/PM below, or simply fill in the alarm details underneath and click Add Alarm.
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No alarms set yet - add one above.
00:00.00
05:00
Related Tools
Frequently asked questions
Will the alarm still ring if I close the browser tab?
No - the alarm relies on the tab staying open in your browser. Keep the tab open (it can be in the background) for the alarm and sound to trigger at the set time.
Can I set more than one alarm?
Yes - anonymous users can save up to 5 alarms; signing up for a free account removes that limit entirely.
Is there a limit to how long the timer or stopwatch can run?
No - the stopwatch and timer can run for as long as you need, from a few seconds up to several hours. Just keep the browser tab open so it keeps counting.
