How to use the online alarm clock
If the evening is when you get things done — an assignment, a load of washing, dinner prep — 9:18 pm is a sensible time to set a firm reminder. This tool rings at 9:18 pm through your laptop or desktop speakers, whether the tab's open on the kitchen bench or the desk.
Set your preferred sound, press Start, then leave the tab where it is. Everything happens inside the browser — no background app, no notification pushed from a server — so an open tab is what actually makes the alarm ring at the right time.
This works well as a second alarm, one that isn't tangled up with phone notifications, do-not-disturb settings, or low battery. It genuinely won't ring if the tab gets closed or the device goes to sleep, so treat it as a backup or a work-desk tool rather than the only alarm for something important. On a 24-hour clock 9:18 pm is written 21:18, and spoken aloud it's eighteen minutes past nine at night. Written the Australian way that's 9.18 pm, and typed in a hurry it's often 9:18pm. Setting the alarm to 9:18 pm tomorrow morning works the same way: if the time has gone for today, the count runs through to it.
Common questions
Is there a cost to use this?
No, it's free, with no sign-up and no limit on how many times you set it. It just needs the tab left open until the time you've chosen arrives.
Will the alarm still ring if I close the browser tab?
No. The alarm only runs while this tab stays open — closing it, or closing the browser entirely, stops the countdown before it can ring. Keep the tab open in the background if you need it to go off later.
Does the alarm work if my laptop goes to sleep?
Not reliably. If the device sleeps or the screen locks, the browser tab pauses along with it, so the alarm may not fire on time or at all. Adjust your power settings if you're relying on this over a longer stretch.
Do I need to create an account or download anything?
No, there's nothing to sign up for and nothing to install. Pick a time and a sound, press Start, and it runs entirely in this browser tab.
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