How to use the online alarm clock
Hand the passports and ferry details to your travelling companion as they take over getting everyone through security at Dover. Setting an alarm for 8:49 am gives them a clear cue to check the lane, gather the group and keep the handover moving before 9:00 am. Tell them what the alarm means so nobody mistakes it for an unrelated notification.
While responsibility for the security check changes hands, confirm that the alarm can actually be heard: silent mode may suppress or soften browser audio on some phones. Raise the media volume and play the available sound once before relying on it. The alarm cannot sound for your ferry check if its browser page is closed or the phone is asleep, so keep the page open, the phone awake and the charger connected if the battery is low.
Dover’s early daylight can leave a bright phone screen feeling harsh inside a vehicle or terminal. After setting 8:49 am, lower the display brightness enough to read the alarm controls without staring into glare, then place the phone where the person taking over can see it at a glance. Avoid hiding it beneath documents or leaving the screen facing directly towards your eyes while you wait.
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 8:49 am?
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.