Online alarm clock for 7:09 pm
You are already absorbed in another job when 7:09 pm arrives, so the alarm needs to pull you away long enough to check the timetable for overnight engineering works on the Tube. That leaves time to confirm any affected lines and plan around closures before 8:00 pm, without relying on memory while your attention is elsewhere.
Your timetable check could be missed if the alert is routed to headphones that you have taken off or left in another room. The selected alarm sound should therefore be tested through the audio output you will actually hear at 7:09 pm, with the volume noticeable over whatever you are doing. If you shut this page or let your phone or laptop sleep, the alarm cannot sound, so the engineering-works timetable may go unchecked.
An evening timetable check often happens indoors after the day’s warmth has built up, while air conditioning adds steady background noise. Keeping the phone or laptop nearby and away from the direct draught makes the alert easier to notice without raising it excessively. A moderate, distinct tone can stand apart from the hum of the air conditioner and interrupt your current task without startling everyone else in the room.
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.
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