248 Seconds Timer
Press Space to start/pause, R to reset, F for fullscreen, ? for help.
00:04:08
Set Timer for Specified Time
249 Seconds Timer
250 Seconds Timer
251 Seconds Timer
252 Seconds Timer
253 Seconds Timer
254 Seconds Timer
255 Seconds Timer
256 Seconds Timer
257 Seconds Timer
258 Seconds Timer
259 Seconds Timer
260 Seconds Timer
261 Seconds Timer
262 Seconds Timer
263 Seconds Timer
1 Second Timer
2 Seconds Timer
3 Seconds Timer
5 Seconds Timer
10 Seconds Timer
15 Seconds Timer
20 Seconds Timer
25 Seconds Timer
30 Seconds Timer
35 Seconds Timer
40 Seconds Timer
45 Seconds Timer
50 Seconds Timer
60 Seconds Timer
90 Seconds Timer
About 248 Seconds Timer
Set a 248 Seconds countdown timer for free. This online timer works offline as a PWA, supports audio alerts, keyboard shortcuts, and repeat mode.
How to use
Click the Start button to begin the countdown. Use +1m/−1m buttons to adjust time quickly, or click the timer display to set a custom duration. Press Space to pause/resume, R to reset, and F for fullscreen.
Features
- Works completely offline after first load (PWA)
- Multiple timers (add with the + button)
- Fullscreen mode for presentations and classrooms
- Repeat mode for continuous intervals
- Browser notifications (with permission)
Use cases for 248 Seconds
- Pomodoro short breaks
- Tea steeping
- Quick workouts
- Lightning talks
- Kitchen prep
Tips for using this timer
- Press Space to start/pause
- Press R to reset timer
- Press F for fullscreen mode
- Click the + button to add multiple timers
- Enable Repeat mode for continuous intervals