How to use the online alarm clock
As you hand the shift to someone else, set the 3:21 pm alarm for the moment the tool needs returning to the library of things. That gives the next person a clear reminder instead of relying on a hurried verbal handover. It also leaves enough afternoon before 4:00 pm to put the item back in its labelled place and mention anything unusual about its condition.
For this return, keep the browser alarm on a computer that will stay awake until it sounds, with the volume set high enough for the person taking over to hear. If the computer sleeps before 3:21 pm, the alarm cannot sound, so the tool may miss its return to the library. A separate phone alarm is a sensible fallback when the handover involves leaving the desk or locking up another room.
A handover at this point in the afternoon can affect other people at home, especially if someone is working quietly, studying or resting nearby. Choose a restrained alarm sound, tell them it is due at 3:21 pm, and keep the tool near the exit so it can be collected promptly. That avoids repeated ringing and keeps the library return from interrupting the household more than necessary.
Common questions
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.
What happens if my laptop goes to sleep before 3:21 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.
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