Set the alarm clock for 8:40 am

 

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

The alarm goes off in: ::
 
 

Going to bed for a 8:40 am alarm

  • Asleep by 11:25 pm — 6 full sleep cycles, about 9 hours
  • Asleep by 12:55 am — 5 full sleep cycles, about 7 hours
  • Asleep by 2:25 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.

8:40 am across the country

Sydney8:40 am
Brisbane8:40 am
Adelaide8:10 am
Perth6:40 am
Darwin8:10 am

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

Online alarm clock for 8:40 am

As the last charter checks wrap up, an 8:40 am alarm gives you a clear cue to leave for the marina rather than linger over one more job. That puts departure comfortably ahead of 9:00 am, with enough time to collect your bag, lock up and reach the boat without turning the morning into a rush.

Because you are finishing up and heading out, leave this alarm page open while it is counting down. Closing the tab or quitting the browser stops the alarm, so it cannot provide the departure cue for your daytime charter. Your phone or computer also needs to remain awake, with the sound turned up to a level you will notice. A quick check before packing away avoids relying on an alert that can no longer run.

On the way from home to the marina, the early air may already feel humid, especially around sheltered waterfronts. Keep a light outer layer where it can be removed easily rather than buried beneath charter gear, and allow a moment outside before deciding what to wear aboard. At 8:40 am, shade can still feel different from an exposed jetty, while a breeze over the water may change the temperature again. Packing water somewhere accessible also keeps it from being forgotten during the final walk to the boat.

Common questions

Is there a cost to use this?

No, it's free, with no sign-up and no limit on how many times you set it. It just needs the tab left open until the time you've chosen arrives.

Will the alarm still ring if I close the browser tab?

No. The alarm only runs while this tab stays open — closing it, or closing the browser entirely, stops the countdown before it can ring. Keep the tab open in the background if you need it to go off later.

Does the alarm work if my laptop goes to sleep?

Not reliably. If the device sleeps or the screen locks, the browser tab pauses along with it, so the alarm may not fire on time or at all. Adjust your power settings if you're relying on this over a longer stretch.

Do I need to create an account or download anything?

No, there's nothing to sign up for and nothing to install. Pick a time and a sound, press Start, and it runs entirely in this browser tab.