Online alarm clock for 9:11 am
As you finish preparing for the office evacuation drill and leave your desk, a 9:11 am alarm can mark the moment to head towards the assembly route. It gives you a clear cue without repeatedly checking the clock, while leaving plenty of the morning before 10:00 am for everyone to regroup and return to work.
A rehearsal cue is useful only if you know beforehand what it will sound like in a busy workplace. Set the browser alarm, test its signal once, and choose a volume that can be heard above ordinary office conversation without disturbing another floor. Keep the alarm page active after that check. If the page is no longer open or your phone or laptop has gone to sleep, no sound will mark the evacuation drill, so use a separate backup if missing the cue would disrupt the exercise.
Stepping outside from a warm office at 9:11 am can make the morning air feel unexpectedly damp, particularly after overnight rain. Check the conditions before leaving your desk and keep a light outer layer close by if the assembly point is exposed. Humidity may also leave paths, painted steps, or the office forecourt slick, so allow a steady walk to the meeting area rather than rushing when the alarm sounds.
Common questions
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.
Will it still be right when the clocks change?
Yes. It reads your device's local clock, so the move between GMT and BST at the end of March and October is picked up automatically, as long as the computer's date, time and time zone are set correctly.
Can I use this on a phone?
It works in a mobile browser, but phones lock the screen and suspend background tabs far more readily than a laptop does, which can stop the alarm sounding. For anything important, a desktop or a plugged-in laptop is the steadier option.
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.
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