Set the alarm clock for 11:47 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 11:45 am Alarm clock for 11:46 am Alarm clock for 11:48 am Alarm clock for 11:49 am

Going to bed for a 11:47 am alarm

Asleep by 2:32 am — 6 full sleep cycles, about 9 hours
Asleep by 4:02 am — 5 full sleep cycles, about 7 hours
Asleep by 5:32 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.

11:47 am across the country

Sydney	11:47 am
Brisbane	11:47 am
Adelaide	11:17 am
Perth	9:47 am
Darwin	11:17 am

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

Online alarm clock for 11:47 am

You have only just woken up, and returning your bottles is still an intention rather than a job under way. An alarm for 11:47 am gives you a clear moment to get out of bed, gather the containers and check what you need before heading to the refund point. With 12:00 pm approaching, there is enough time to shift from waking up to getting ready without treating noon as the starting signal.

Your bottle-return plan depends on noticing the alert, so leave this alarm visible while you prepare. If you switch to another tab, the browser can push the alarm into the background, where timing or sound may become less reliable. If you close the page or allow your phone to sleep, the alarm for the bottles may not sound at all, which could leave the trip waiting beside the door. Keep the page active and the phone awake until 11:47 am.

Because this is late morning, decide before settling back down whether any more sleep fits the bottle run you intend to make. A brief doze can easily stretch past the alert if the browser cannot wake your phone. Place the containers where you will see them when you stand up, keep water nearby, and use 11:47 am as the firm end of sleep rather than the beginning of another snooze.

Common questions

Can I use this on my phone instead of a laptop?

Yes, it works in a mobile browser the same way, but phones are more likely to lock the screen or sleep, which can stop the alarm from ringing. A laptop or desktop tends to be more reliable for this.

Can I set more than one alarm at a time?

This page is built around a single alarm at a time. For multiple alarms, open a separate tab for each one and set a different time in each, keeping every tab open until it's rung.

Why use a browser alarm instead of my phone's built-in one?

Mainly for reliability against silent mode, do-not-disturb, or a phone left charging out of earshot. It's a useful backup or a desk-based alternative, though it depends on this tab staying open rather than running in the background of your phone.

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.