How to use the online alarm clock
Finish watering the greenhouse with the collected rainwater, then put the can or hose away before leaving the plot. An alarm set for 6:56 pm marks a clear stopping point, with 7:00 pm close enough for shutting the greenhouse, checking the water butt tap and gathering anything that needs taking home.
The sound should suit both the surroundings and how easily the task absorbs your attention. A gentle tone may be enough on a quiet allotment, while a more persistent one can cut through splashing water, rustling covers or conversation nearby. Set the volume where it will be audible from the far end of the greenhouse without disturbing neighbouring plots. If the browser is closed or the phone falls asleep, the greenhouse reminder will not sound, so use the device’s built-in alarm as a backup when leaving on time matters.
Leaving the plot at 6:56 pm can preserve a useful margin before the next commitment that afternoon. Allow for locking the shed, closing the gate and walking back to the car, bus stop or station rather than treating the alarm as the moment to begin one last job. Keeping those final minutes unclaimed also gives you room to rinse muddy hands and pack wet gardening gloves separately.
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.