Set the time, press start, and go fullscreen for a big countdown — ideal for timed exam practice and study sessions.
Choose an interval to hear “30 minutes remaining” as the time runs down.
Space start/pause · R reset · F fullscreen
Type hours, minutes and seconds straight into the circle, or tap a preset from 1 minute up to 3 hours — for example 90 minutes or 2 hours for a full-length paper. Then press Start.
Yes. Before you start, choose "Announce time remaining every" 5, 10, 15, 30, 45 minutes or 1 hour. At each of those points the timer plays a short chime and says, for example, "30 minutes remaining" (where your browser supports speech; otherwise you hear just the chime), and the circle changes colour so you can see the stage at a glance. The speaker icon mutes the sounds.
Yes. The timer counts down to a fixed end time on your device's clock, so it stays accurate even if the browser slows a background tab. The time left also appears in the browser tab's title while it runs. While it is running, the page asks your device to keep the screen awake where the browser allows it.
When the time is up you get three beeps and, on phones that support it, a vibration, and a clear "Time's up" message. Some phones restrict sound from a locked screen or a hidden tab, so don't rely on the alarm alone for anything critical — keep the tab visible. Use the speaker icon to mute it.
It warns you in the final stretch: the last 5 minutes of a longer timer, or the last quarter of a short one, so a 5-minute timer isn't amber from the very start.
The running timer is saved on your device and carries on from the correct time, so an accidental refresh won't lose your place. If it ended while the page was closed, it shows as finished.
Press the expand icon at the top right of the timer, or the F key. Press Escape or the icon again to leave. On phones whose browsers don't offer true fullscreen (such as iPhone), it fills the whole page instead.