Set the alarm clock for 7:03 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 7:01 am Alarm clock for 7:02 am Alarm clock for 7:04 am Alarm clock for 7:05 am

Going to bed for a 7:03 am alarm

Asleep by 9:48 pm — 6 full sleep cycles, about 9 hours
Asleep by 11:18 pm — 5 full sleep cycles, about 7 hours
Asleep by 12:48 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.

7:03 am across the country

London	7:03 am
Birmingham	7:03 am
Manchester	7:03 am
Glasgow	7:03 am
Belfast	7:03 am

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

How to use the online alarm clock

Watching the clock while you wait to leave for Dover ferry screening makes 7:03 am a useful moment to mark. The alarm can break the spell of repeated time checks and signal that it is time to gather your documents, leave the café or move towards the terminal. That still leaves 57 minutes before 8:00 am, enough for the next stage without treating the whole hour as spare time.

Your screening slot depends on hearing the alert, so set 7:03 am and choose a sound that is clear above conversation or traffic outside. A phone or laptop that goes to sleep before then may silence the browser alarm. If the browser page is shut or the device sleeps, no sound will play, which could leave your ferry screening plans running late. Keeping the alarm visible while you wait also makes its status easy to check.

Dover can feel damp in the early morning, especially when sea air and a breeze meet near the port. At 7:03 am, a light outer layer that handles moisture is more practical than relying on the temperature alone. Keep travel papers inside a zipped pocket or bag section, away from drizzle and condensation, so they remain easy to reach when screening begins.

Common questions

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.

What happens if my laptop goes to sleep before 7:03 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.