Set the alarm clock for 6:19 am

Leave this tab open — the alarm only rings while the tab stays open.

The alarm goes off in: ::

You can also try the other alarm clocks

Alarm clock for 6:17 am Alarm clock for 6:18 am Alarm clock for 6:20 am Alarm clock for 6:21 am

Going to bed for a 6:19 am alarm

Asleep by 9:04 pm — 6 full sleep cycles, about 9 hours
Asleep by 10:34 pm — 5 full sleep cycles, about 7 hours
Asleep by 12:04 am — 4 full sleep cycles, about 6 hours

A sleep cycle runs about 90 minutes, and most people take around 15 minutes to drop off. Waking at the end of a cycle feels easier than waking in the middle of one.

6:19 am across the country

London	6:19 am
Birmingham	6:19 am
Manchester	6:19 am
Glasgow	6:19 am
Belfast	6:19 am

Times are worked out live in your browser, so daylight saving is already accounted for.

How to use the online alarm clock

While you watch the clock for your allotted security check before the ferry from Dover, set the alarm for 6:19 am so the moment does not slip past. It gives you a clear cue to gather passports and booking details without repeatedly checking the time. With 7:00 am approaching, those 41 minutes can cover the final wait and leave a little room for the queue.

Your place in the terminal should guide the alarm sound. A gentle tone suits a quiet passenger lounge, while a more persistent one may be useful amid announcements, engines and conversation. Set the volume so you can notice it without disturbing everyone nearby. Keep the browser running and the phone awake: otherwise the ferry reminder may stay silent, which could leave you late for the assigned check.

Waiting near Dover this early can feel damp and breezy, even when the terminal seems warm. If you step outside before 7:00 am, keep a light waterproof layer within reach rather than packed beneath luggage. Moist air can also mist glasses or a phone screen, so wipe them before checking directions or showing a digital booking reference.

Common questions

What happens if my laptop goes to sleep before 6:19 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.

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.