How to use the online alarm clock
A short afternoon nap before an evening shift only helps if you actually get up again, which is where an alarm for 3:33 pm earns its keep. This rings through your browser at 3:33 pm, so a laptop on the couch arm can do the waking for you.
Start by selecting a tone from the dropdown, then hit Start to lock it in. From that point the page does the counting, and it'll ring once the time is reached, but only if the tab is still open somewhere on your device. Closing it, or the browser entirely, cancels the alarm.
Some people use this alongside a phone alarm rather than instead of it: a louder backup through laptop speakers, or a way to set a reminder without touching a phone at all. It won't survive the tab closing or the device sleeping, so for anything critical overnight, keep a second alarm running as well. On a 24-hour clock 3:33 pm is written 15:33, and spoken aloud it's twenty-seven minutes to four in the afternoon. Timetables and rosters may show it as 15:33, and handwritten notes as 3.33 pm. Set an alarm for 3:33 pm, set the alarm to 3:33 pm, set my alarm for 3:33 pm — all of it lands on this page and does the same thing.
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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