12 hours and 21 minutes timer
Set a timer for 12 hours and 21 minutes. Rings when it's done.
12:21:00
A countdown timer for 12 hours and 21 minutes. Press the "Start" button to start the timer. The timer will alert you when it expires. You can reset the timer at any time using the "Reset" button. You can also pause the timer at any time using the "Pause" button.
Custom timer
Hours
Minutes
Seconds
Things you can do in 12 hours and 21 minutes
- Have 92 showers
- Wash your teeth 370 times
- Watch 32 episodes of Friends
- Read 370 pages of a book
- Walk 37 miles
- Listen to Bohemian Rhapsody 123 times
- Watch Titanic 3 times
- Change 370 light bulbs
- Water 741 plants
- Read 2,223 emails
- Watch 2,964 TikToks
- Plant 24 trees
- Plant 24 trees
- Read 49 book summaries on Blinkist
- Blink 88,920 times
- Click this 277,875 times
In 12 hours and 21 minutes...
- Your heart beats 44,460 times
- Light travels 8,269,566,284 miles
- Earth travels 844,740 miles around the Sun
- Your body produces 12 oz of saliva
- The International Space Station travels 211,616 miles
- Elon Musk earns $222,300,000
- 2,800,982,800 Google searches get made
- The U.S. national debt increases by $2,022,307
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Frequently asked questions
Why do I need a timer?
If you're here, you probably already need it for something. In any case, timers are useful any time you need to perform a certain action for a specific amount of time. The timer alerts you when that time period is over.
How do I know when the timer is up?
When the timer is up, we'll play a 2 second alert and the timer will blink red. We'll also update the timer in the page title, so you will instantly see it even if you have multiple browser tabs open.
Can I use it on my phone?
Yes, it works on any device with a browser.
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