Online alarm clock for 9:18 pm
As you finish what you are doing and head out to join the bell ringers for their tower round, set the alarm for 9:18 pm so departure does not slip. That leaves a useful margin before 10:00 pm for the walk, finding the entrance and meeting the group without rushing through unfamiliar streets.
Your 9:18 pm alert needs to suit the atmosphere around the bell tower. Choose a softer tone if you will already be waiting near the ringers and only need a discreet reminder; use a more insistent sound if you might still be packing up somewhere noisy. Set a sensible volume, then test it while you can hear the result. The alarm cannot remind you about the bell-tower round if the browser has been closed or your phone has gone to sleep, so keep it running and awake until 9:18 pm.
Once you are ready to leave in the evening, avoid spending the remaining wait staring at a bright screen. Lower its brightness to match the surrounding light, use a warmer display setting if available, and place the phone where the alarm remains audible. You can then check your route or meeting details briefly without keeping the display in front of your eyes until the alert sounds.
Common questions
What happens if my laptop goes to sleep before 9:18 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.
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.
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