Online alarm clock for 5:21 pm
Halfway through a CFA volunteer brigade training session, you need the 5:21 pm alarm to pull you away from the current exercise, not merely mark another minute. It can signal when to pack up your part of the drill, check shared equipment or move to the next activity before the group reaches 6:00 pm.
A noisy training ground can make the selected signal easy to miss, especially when your phone or computer has quietly routed its audio to headphones left in a bag. Check the active audio output and choose a tone you can distinguish from voices and equipment sounds. If you close this page or let the device sleep, the alarm cannot sound, so the CFA training session may continue past the moment when you meant to break away.
After an afternoon drill, moving between outdoor heat and an air-conditioned station can make 5:21 pm feel less predictable than the clock suggests. Keep the device with you instead of leaving it beside an air-conditioner or in a hot vehicle, and set the volume while standing where you expect to hear it. A quick sound check from that spot gives you a more realistic sense of whether the alert will cut through the room.
Common questions
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.
What happens once the alarm goes off?
It rings through your device's speakers on a loop until you stop it from this page. There's no separate app notification, so make sure your volume is turned up before you rely on it.
Is this alarm accurate across daylight saving time?
It uses your device's local clock, so as long as your computer's time and date settings are correct, it'll adjust automatically when daylight saving time starts or ends.
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