How to use the online alarm clock
As you finish what you are doing and head out to meet the engineer checking your gas boiler, a 3:49 pm alarm can mark the moment to leave. It gives you a clear prompt before 4:00 pm, so there is time to collect your keys, lock up and reach the meeting point without repeatedly checking the clock.
A signal for this appointment needs to be heard over the sounds already around you. Set the volume high enough for the alarm to stand out from a television, extractor fan or traffic outside, then avoid leaving the phone muffled inside a coat or bag. Keep the alarm running and the phone awake until it sounds; otherwise the boiler engineer could arrive while the reminder remains silent. A brief test beforehand can show whether the chosen tone carries across the room.
Once the engineer has been met, the remaining afternoon may still contain another commitment, such as collecting someone, catching a train or getting home for a delivery. Allowing a small buffer after the 3:49 pm reminder keeps that later part of the day workable if the boiler check begins late or the conversation at the door takes longer than expected.
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 3:49 pm?
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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