Online alarm clock for 12:54 am
Before handing the shift to someone else, set the 12:54 am alarm for the call to Perth, where it is three hours earlier. That leaves a clear prompt just before 1:00 am, so the next person knows when to make contact rather than relying on a hurried verbal handover. Add a short label mentioning Perth to keep the purpose obvious.
A late-night handover is a poor moment to discover that the alert is too quiet, so test the signal now, while there is still time to adjust it. Set a temporary alarm a minute ahead, check the volume, and confirm that the sound is distinct from ordinary notifications. Because this alarm depends on an active browser session, it cannot cover the Perth call after the page is closed or the phone sleeps. Leave the browser running and use a separate built-in alarm as backup if the call cannot be missed.
A call around midnight can carry through a quiet Australian home, especially when doors are open or a phone rests on a hard bedside table. Keep the alert close enough for the person taking over to hear, but lower the volume after the test and use vibration if that will wake fewer housemates. Preparing the phone, notes and contact details together also avoids searching through rooms when the alarm sounds at 12:54 am.
Common questions
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.
What happens once the alarm goes off?
It rings through your device's speakers on a loop until you stop it from this page. There's no separate app notification, so make sure your volume is turned up before you rely on it.
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