How to use the online alarm clock
Pull yourself away from the middle of the opening checks when the 6:04 am alarm sounds, so the public pool is ready for its early session. That precise cue separates jobs that can wait from the doors, changing rooms and poolside tasks that need attention before swimmers arrive. With 7:00 am approaching, the alert marks a useful handover point rather than relying on a hurried glance at the clock.
Around an indoor pool, ventilation, water systems and cleaning equipment can easily mask a quiet signal. The alarm volume therefore needs to be clearly audible above the background noise, with the chosen sound tested from wherever you will actually be working. If its browser tab is closed or the phone or laptop goes to sleep, no alarm can sound, so the pool may not be ready when the early session begins. Keeping the powered device nearby also prevents a loud tone from disturbing an empty reception while remaining unheard in the plant room.
Before the first swimmers appear, the contrast between a bright screen and the dim early-morning surroundings can feel unnecessarily harsh. A lower display brightness or warmer screen setting makes a quick 6:04 am check less glaring, while placing the device where the time is readable without staring at it keeps attention on the opening work. Once the alarm is confirmed, turning the screen face down reduces stray light across the poolside area.
Common questions
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.
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.
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