Set the alarm clock for 4:51 am

 

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

The alarm goes off in: ::
 
 

Going to bed for a 4:51 am alarm

  • Asleep by 7:36 pm — 6 full sleep cycles, about 9 hours
  • Asleep by 9:06 pm — 5 full sleep cycles, about 7 hours
  • Asleep by 10:36 pm — 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.

How to use the online alarm clock

As you hand the remaining suhoor preparation to someone else at 4:51 am, set the alarm for the exact moment they need to take over. The nine minutes before 5:00 am can cover a quick check that food, water and utensils are ready before everyone finishes eating ahead of dawn.

Before stepping away, confirm where the alarm sound will play. A phone may quietly keep routing audio to connected headphones, even when they are lying in another room or tucked inside a bag. Disconnect them or test the sound aloud so the next person can hear it. If the browser stops running or the phone falls asleep, this alarm cannot sound, so the person handling suhoor could miss the handover.

While the household is moving between a cool room and the warmer kitchen during the night, keep the phone away from the strongest stream of air from the conditioner. Place it somewhere visible and dry, with the speaker uncovered, rather than beside a vent or under folded fabric. At 4:51 am, that also makes the screen easier to spot without searching around and disturbing anyone who has already finished eating.

Common questions

Is there anything to install, or do I need an account?

Whether you are checking the time before a Dubai commute or setting a reminder at home, no account is required. The alarm scheduled for 4:51 am stays within this browser tab, without an app download or stored settings remaining after you leave the page.

Can this be accessed without an app download or account setup?

The page handles the alarm itself, so it does not send you through registration or place an application on your device. After you set 4:51 am, keep the tab open for it to run; once the page is closed, that browser session and its choices are gone.

Can I select another sound for this alarm?

Yes. Before starting the alarm, select a tone from the available sound list; for a 4:51 am wake-up, a clearer, stronger tone may be easier to notice than a gentle one, especially when the room is quiet and the air conditioning is running.

Is it possible to change the alert tone?

A small selection of sounds is available before you start the alarm. If 4:51 am is an early start before the Dubai traffic builds, consider choosing one of the firmer tones, since softer options can be easier to sleep through.