Online alarm clock for 3:59 pm
Pack the last towel and start leaving the beach when the 3:59 pm alarm sounds. You are already wrapping up, so the alert becomes a clear cue to shake out the sand, check that nothing has been left behind and head off before dusk. With 4:00 pm arriving a minute later, there is no need to squeeze in another swim.
A beach departure may suit a gentle tone if everyone is nearby and expecting to leave, while a persistent sound is more useful when surf, conversation or music could mask the first alert. Set 3:59 pm, choose a tone that matches the surroundings and leave the alarm page running. Keep the browser active and the phone awake until it rings; otherwise the beach reminder may stay silent and delay the trip back.
As you gather your things in the late afternoon, avoid staring at a bright screen against the softer outdoor light. Lower the display brightness before checking the alarm, then put the phone somewhere shaded but audible instead of leaving it face-up on the sand. A quick glance is enough to confirm 3:59 pm, and a high-contrast display setting can make that check easier without lingering over the screen.
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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