240 hours
A reliable 240-hour timer starts with a single click and counts down every second. The built-in converter instantly displays minutes, seconds and days, and the start, pause and reset buttons are clear even for beginners. Full-screen mode and adjustable audio help you avoid distractions.
The interface automatically adapts to any screens and continues to work in the background. The remaining time is displayed in the tab header so that you can control long-running tasks.
A long 240 hours timer is convenient when you need to count down an extended interval — from several days to waiting for a major event. The countdown keeps running steadily even across tab switches.
In other units:
240 hours equals 14400 minutes or 864000 seconds.
No. The 240 hours timer runs in the browser — on phone, tablet, or computer. No apps to install, no sign-up needed.
Yes, the countdown continues even when you switch tabs. The remaining time is also shown in the browser tab title, so you won't miss the end.
Yes, settings let you pick different sounds and adjust the volume. You can also mute it entirely.
Yes, there's a full-screen mode — handy for presentations, classes, workouts, and group sessions.
The timer uses the device's system clock and stays accurate even on long intervals. Countdown precision is to the second.
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