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 4:38 pm earns its keep. This rings through your browser at 4:38 pm, so a laptop on the couch arm can do the waking for you.
After picking a tone, press Start and leave the page open. It doesn't need an internet connection once it's running, but it does need the tab itself to stay open, so avoid closing the browser or letting the device fall asleep before the time is reached.
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 4:38 pm is written 16:38, and spoken aloud it's twenty-two minutes to five in the evening. You'll also see it written 4.38 pm — a full stop instead of the colon means the same time. Whether you would say set alarm for 4:38 pm or put an alarm on for 4:38 pm, the steps are the same: pick a sound, press Start, leave the tab open.
Common questions
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.
Can I change the alarm sound?
Yes, there's a short list of tones to choose from before you press Start. Pick whichever one you're most likely to actually hear — softer sounds are easier to sleep through than a firm chime or bell.