How to use the online alarm clock
Before finishing your night shift at the 24-hour supermarket, set the alarm for 2:38 am while there is still time to check it. That gives you a clear prompt to close your till, finish the handover or collect your things before 3:00 am, instead of noticing the hour only when everyone is ready to leave.
Your shift may be quiet enough for headphones, but they can take over the alarm sound without making that obvious on screen. Check the selected audio output, remove the headphones if appropriate, and use the preview to confirm that the alert will be audible across your work area. A browser alarm cannot signal the end of your supermarket shift if its page stops running or the computer goes to sleep, so keep it active until 2:38 am.
Leaving an air-conditioned supermarket during the night can make the outdoor temperature feel unexpectedly different, even in a British summer. Keep a light layer handy for the walk to the bus stop or car park, and give yourself a moment away from a strong air-conditioning vent before heading outside. At this hour, that small preparation can make the change from a cool shop floor to the open air less abrupt.
Common questions
Does the alarm still work if I close the tab?
No. Everything runs inside this page, so closing the tab — or quitting the browser altogether — ends the countdown there and then. Leaving it open in the background is all it asks, and switching to another tab makes no difference.
What happens if my laptop goes to sleep before 2:38 am?
The tab sleeps along with it and the alarm will not sound on time, if at all. If you are relying on it, change the power settings so the machine stays awake, or keep a phone alarm running as well.
Do I need an account or an app?
Neither. Choose a time and a sound, press Start, and it runs in this browser tab. Nothing is downloaded, nothing is registered, and closing the page leaves nothing behind on the device.
Can I change the sound?
Yes, there is a short list of tones to pick from before you press Start. Softer sounds are easy to sleep through, so a firmer bell tends to be the safer choice for anything early in the morning.
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