How do I set a 498 hours timer?

Click the Start button to begin the countdown. You can adjust time with +1m/-1m buttons or click the display to set a custom time.

What happens when the 498 hours timer ends?

The timer plays an audio alert and can show a notification (if enabled). Enable Repeat mode for continuous intervals.

498 Hours Timer — Free Online Timer (Works Offline)

498:00:00

Set Timer for Specified Time

499 Hours Timer 500 Hours Timer 501 Hours Timer 502 Hours Timer 503 Hours Timer 504 Hours Timer 505 Hours Timer 506 Hours Timer 507 Hours Timer 508 Hours Timer 509 Hours Timer 510 Hours Timer 511 Hours Timer 512 Hours Timer 513 Hours 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

1 Minute Timer 2 Minutes Timer 3 Minutes Timer 5 Minutes Timer 10 Minutes Timer 15 Minutes Timer 20 Minutes Timer 25 Minutes Timer 30 Minutes Timer 35 Minutes Timer 40 Minutes Timer 45 Minutes Timer 50 Minutes Timer 60 Minutes Timer 90 Minutes Timer

1 Hour Timer 2 Hours Timer 3 Hours Timer 4 Hours Timer 5 Hours Timer 6 Hours Timer 7 Hours Timer 8 Hours Timer 9 Hours Timer 10 Hours Timer 12 Hours Timer 18 Hours Timer 24 Hours Timer 48 Hours Timer 72 Hours Timer

About 498 Hours Timer

Set a 498 Hours 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 498 Hours

Full work day
Overnight timers
Server maintenance windows
Hackathons
Exam supervision

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

Related timers

249 Hours Timer 374 Hours Timer 448 Hours Timer 548 Hours Timer 623 Hours Timer 747 Hours Timer