How to use the online alarm clock
Setting an alarm for 11:09 pm at night often comes down to one thing: not trusting yourself to notice the time once you're deep into something else, whether that's study, a show, or work that's run late. This will ring at 11:09 pm through your device's speakers until you stop it.
Pick whichever sound you're most likely to actually notice, then press Start. The alarm is tied to this browser tab, so it needs to stay open. Minimising the window is fine, but closing the tab or the browser will stop the countdown before it ever rings.
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 11:09 pm is written 23:09, and spoken aloud it's nine minutes past eleven at night. Written the Australian way that's 11.09 pm, and typed in a hurry it's often 11:09pm. Whether you would say set alarm for 11:09 pm or put an alarm on for 11:09 pm, the steps are the same: pick a sound, press Start, leave the tab open.
Common questions
Can I use this on my phone instead of a laptop?
Yes, it works in a mobile browser the same way, but phones are more likely to lock the screen or sleep, which can stop the alarm from ringing. A laptop or desktop tends to be more reliable for this.
Can I set more than one alarm at a time?
This page is built around a single alarm at a time. For multiple alarms, open a separate tab for each one and set a different time in each, keeping every tab open until it's rung.
Why use a browser alarm instead of my phone's built-in one?
Mainly for reliability against silent mode, do-not-disturb, or a phone left charging out of earshot. It's a useful backup or a desk-based alternative, though it depends on this tab staying open rather than running in the background of your phone.
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.