Set 8 Hours Timer Online
Set timer for 8 Hours directly in your browser. This free online countdown clock counts down from 8 hours to zero and plays a loud alarm when time is up. To start the timer, simply click the Start button above.
Popular Uses
- Standard Workday - time your full 8-hour work day from clock-in to clock-out with a clear audio signal at the end.
- Overnight Marinade - marinate larger cuts of meat in the refrigerator for 8 hours for maximum flavor and tenderness.
- Full Sleep Cycle - 8 hours covers five complete 90-minute sleep cycles for full physical and cognitive overnight recovery.
- Slow Cooker High Setting - many slow cooker recipes on the high setting complete perfectly after 8 hours of hands-off cooking.
- Battery Charge Reminder - set an alert so devices or an electric vehicle do not stay plugged in long past a full charge.
Frequently Asked Questions
Does this 8 hours timer make a sound?
Yes. When the countdown reaches zero, the browser plays a short alarm chime. Keep the tab open and your device volume enabled.
Can I use this timer in full screen?
Yes. Use the full-screen button to turn the countdown into a large display for classrooms, workouts, meetings, cooking, or livestreams.
How many seconds is this timer?
This countdown is exactly 28,800 seconds long.
More Timer Durations
Need a different time? Select from our quick preset timers below.
Seconds:
Minutes: