How to use the online alarm clock
You are only just waking at 1:02 am, so the final stretch of your supermarket shift has not begun yet. Set the alarm now to mark the point when you need to get moving, check what remains on your section and prepare to finish at 2:00 am. That leaves a clear boundary between gathering yourself after sleep and starting the last jobs of the night.
Your supermarket routine may be quiet enough that a missed sound goes unnoticed, especially if your phone is set to silent. Check the volume with a brief test and leave the alarm page active on an awake device. A browser alarm cannot signal the end of a supermarket shift once the page is closed or the device has gone to sleep, so use a separate alarm if you cannot keep it running.
Coming round during a warm night can make an air-conditioned staff room feel much colder than the shop floor. Before leaving your break, allow a few minutes to adjust, take a light layer if the stockroom feels chilly, and keep some water nearby. At 1:02 am, this small preparation can make the move back under bright lights and changing temperatures less abrupt while you complete the final hour.
Common questions
What happens if my laptop goes to sleep before 1:02 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.
Will it still be right when the clocks change?
Yes. It reads your device's local clock, so the move between GMT and BST at the end of March and October is picked up automatically, as long as the computer's date, time and time zone are set correctly.