How to use the online alarm clock
While you watch the clock for the evening guard shift to begin, a 7:51 pm alarm gives the handover a clear starting point. The remaining nine minutes leave room to check the log, keys, radio and any notes from the previous guard before 8:00 pm. Keeping the alert tied to that exact moment helps the incoming shift take over without repeatedly checking the time.
A guard post can be quiet one evening and noisy the next, so match the alarm tone to the surroundings. A softer sound may suit a calm reception desk, while a persistent tone is more practical near radios, conversation or traffic at a building entrance. Set the volume high enough to be noticed without startling visitors or colleagues. The guard shift could begin without an alert if you leave this page or allow the phone to sleep, so keep the alarm running and use a separate backup when the handover cannot be missed.
Once the evening handover is complete, allow a small buffer before the next task that night. Rather than filling every minute after 8:00 pm, reserve enough time to record an observation, return equipment or walk to the next post. That margin is especially useful when a colleague needs an extra explanation, and it prevents one slightly delayed handover from pushing the rest of the evening schedule behind.
Common questions
If I close the tab, will the alarm still go off?
Closing the tab cancels the alarm because the timer for 7:51 pm is handled by that page, not by your device as a separate system alarm. Leaving the page open in the background is fine, even if another tab is on screen.
Does closing the browser tab stop the alarm from ringing?
The page must remain open for the 7:51 pm alarm to sound. Switching tabs, minimising the window, or using another application will not end it, but closing the alarm tab or quitting the browser will.
Can the alarm ring if this tab is no longer open?
Think of the browser tab as the alarm's running space: once that tab is closed, the alarm scheduled for 7:51 pm can no longer continue. It does not need to stay visible, so you may minimise the window or browse elsewhere.
Will my alarm work once I have closed the tab?
No, closing the page stops the alarm rather than leaving it active in the background. For an alert at 7:51 pm, keep that particular tab open; it can sit behind other tabs or inside a minimised browser window.
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