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Set a timer for 36 hours. Wake me up in 36 hours? This page is a free countdown timer for 36 hours. Timer for 36 hours—set a timer for 36 hours in one click. When the countdown reaches zero, an alarm will sound. Change the alarm sound and message in settings. Keep the page open until the timer rings.
This page is pre-set to 36 hours. Start the countdown with one click.

Need to wake me up in 36 hours or set a timer for 36 hours? This page is ready—timer for 36 hours, free online. Use it for cooking, exercise, study, work breaks, or any 36 hours countdown. Alarm when done; settings saved. No app required.
This page is already set for 36 hours. Click "Start timer" to begin the countdown. Keep the tab open; when the time is up, the alarm will sound. You can change the sound and message in settings before starting.
No. The countdown only runs while the page is open. Keep the browser tab active so the timer can ring when it reaches zero. Closing the tab or putting the device to sleep will stop the timer.
Yes. Open the settings (gear icon) on the widget. Choose a ringtone and add a label or note. These settings are saved automatically when you start the timer.
The timer only runs while the page is open. Keep the browser tab active so it can ring when the countdown reaches zero. Closing the tab or putting the device to sleep will stop the timer. Test the alarm before use and ensure your volume is on. On mobile, keep the page in the foreground or the screen on for reliable ringing.
Yes. Settings (sound, message) are saved per duration when you start the timer. Your last-used timers appear in the "Saved timers" section. Each timer page has its own URL—bookmark it (e.g. this page for 36 hours) and your settings will load with one click. For multiple timers at once, open different durations in separate browser tabs.
If you set and start the timer, it's settings (message, sound) for a given time are automatically saved. Here is the list of saved timers. If you don't have any timers saved, we will provide you with some examples. You can activate one with just one click and everything will be ready again.