8 Hour Timer
Click start for an 8-hour countdown you can adjust up or down, with presets for work shifts, flights, exams, and slow cooking, plus an alert when time runs out.
8 Hour Countdown
8:00:00
Presets
Summary
Click start for an 8-hour countdown you can adjust up or down, with presets for work shifts, flights, exams, and slow cooking, plus an alert when time runs out.
How it works
- Click "Start" to begin the 8-hour countdown, or pick a preset first.
- Use "-30m" and "+30m" to adjust the duration before starting.
- Watch the ring shrink and the clock count down in hours, minutes, and seconds.
- Click "Fullscreen" to project a large countdown on screen.
- Hear a short beep and see the screen flash when it hits zero.
- Click "Pause" at any time and "Resume" to continue from where you left off.
- Click "Reset" to return to the last selected duration and run it again.
Use cases
- Time a standard 8-hour work shift or on-call block.
- Track remaining time on a long-haul flight or layover.
- Time a full workday of focused study or exam prep.
- Time an overnight slow cooker or low-and-slow oven cook.
- Time an 8-hour road trip driving block before a break.
- Time an overnight fast or intermittent-fasting window.
- Set a limit for a full-day gaming or streaming session.
- Time a multi-hour proctored or take-home exam window.
Frequently Asked Questions
Last updated: 2026-07-21 ·
Reviewed by Nham Vu