240 minutes
The online timer counts down 240 minutes with second accuracy and shows the current remaining time on the screen after starting. Simple start, pause, and reset buttons are used to control the device. At the end of the countdown, a signal is played, which can be customized or turned off completely.
The interface provides a built-in translation of 240 minutes into hours and seconds, allowing you to quickly navigate through time in other units. You can use full-screen mode, which will hide all minor elements of the site. The timer is adapted to any device and works correctly even when switching to another page, which is convenient for real work on the computer.
A long 240 minutes timer is useful for classes, trips, work shifts, slow-cook recipes, and any scenario where you need to time a long interval. The browser keeps the countdown accurate even when you switch tabs.
In other units:
240 minutes equals 14400 seconds.
No. The 240 minutes 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.
