Online alarm clock for 12:00 pm
As you hand the junior primary swimming lesson over to the next teacher, set the alarm for 12:00 pm so the changeover has a clear marker. It can separate the final pool check from the next group’s routine without making either adult watch the clock. Keep the handover details brief: which children have changed, what equipment is still out and who is waiting to be collected.
Before the swimming lesson begins, run a quick signal check while the pool area is still manageable. Set a near-term test, raise the volume to a level you can hear over splashing and confirm the chosen sound is distinct from ordinary phone alerts. This browser alarm stops working when its page is closed or the phone goes to sleep, so the swimming lesson handover could pass without a sound if you leave it unattended in that state.
During a midday change beside an Australian school pool, bright reflected light can make a screen harder to read than expected. Position the phone in shade, increase text contrast if available and confirm 12:00 pm before stepping away. A short glance at large digits is more practical than repeatedly checking a sunlit display while supervising children and passing notes to the incoming teacher.
Common questions
Will the alarm still ring if I close the browser tab?
No. The alarm only runs while this tab stays open — closing it, or closing the browser entirely, stops the countdown before it can ring. Keep the tab open in the background if you need it to go off later.
Does the alarm work if my laptop goes to sleep?
Not reliably. If the device sleeps or the screen locks, the browser tab pauses along with it, so the alarm may not fire on time or at all. Adjust your power settings if you're relying on this over a longer stretch.
Do I need to create an account or download anything?
No, there's nothing to sign up for and nothing to install. Pick a time and a sound, press Start, and it runs entirely in this browser tab.
Can I change the alarm sound?
Yes, there's a short list of tones to choose from before you press Start. Pick whichever one you're most likely to actually hear — softer sounds are easier to sleep through than a firm chime or bell.
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