How to use the online alarm clock
You have just woken at 1:36 am, with an NHS night shift still ahead and the house quiet around you. Setting the alarm now gives you a clear marker for getting out of bed, dressing and gathering your pass, keys and food before 2:00 am. Keep those first tasks simple while you shake off the heaviness of sleep.
Your NHS shift may begin amid extractor fans, traffic outside or another person moving around the house, so check that the alarm volume is high enough to stand out from that background noise. Place the phone nearby and play a brief test sound before relying on the chosen time. If the browser is no longer active when the alarm time arrives, no signal will sound, which could leave you late for the start of the night shift; a separate phone alarm is a sensible backup.
Before leaving for work in the middle of the night, check whether the air outside feels damp or close rather than judging it from the indoor temperature. At 1:36 am, humidity can make the walk to the car, bus stop or station feel different from the forecast figure. Leave a light outer layer by your shoes, and allow a moment for misted windows to clear if you are driving.
Common questions
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.
Can I use this on a phone?
It works in a mobile browser, but phones lock the screen and suspend background tabs far more readily than a laptop does, which can stop the alarm sounding. For anything important, a desktop or a plugged-in laptop is the steadier option.