3 hours
The 3-hour online timer displays the remaining time in large numbers and automatically converts 3 hours to minutes and seconds. Control is implemented through clear start, pause, and reset buttons. One click - and the timer expands to the full screen. At the end of the period, the configured audio signal sounds, which can be turned off if desired.
The timer works correctly on any device and continues counting down when switching between tabs. The time until completion is visible in the browser header, so that the end time will not be missed.
A 3 hours timer suits work sessions, classes, training, cooking, or trips. Easy to keep on display, full-screen, and never check the clock manually.
In other units:
3 hours equals 180 minutes or 10800 seconds.
No. The 3 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.
We use cookies to improve the site and for analytics. Learn more.
We use cookies to make the site work and, with your consent, to understand how it is used. Read more.
Required for the site to work. We store your theme and, if allowed, your location in the browser only. Cannot be turned off.
Google Analytics — anonymous usage statistics. Sets cookies
_ga, _ga_*.
