Set the alarm clock for 3:50 am

 

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

The alarm goes off in: ::
 
 

Going to bed for a 3:50 am alarm

  • Asleep by 6:35 pm — 6 full sleep cycles, about 9 hours
  • Asleep by 8:05 pm — 5 full sleep cycles, about 7 hours
  • Asleep by 9:35 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.

3:50 am across the country

Sydney3:50 am
Brisbane3:50 am
Adelaide3:20 am
Perth1:50 am
Darwin3:20 am

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

Online alarm clock for 3:50 am

Pause your final hospital task when the 3:50 am alarm sounds, then hand over what you are doing rather than losing track while the night shift ends. The alert leaves ten minutes to finish a note, update the incoming nurse and gather your things before 4:00 am. That short buffer can keep the handover calm even when you are still busy with a patient or paperwork.

During a hospital shift, check where your audio is going before relying on this alarm. Wireless headphones may still be connected in a pocket or locker, quietly taking the sound away from the computer or phone speakers. Set the volume, disconnect headphones if appropriate, and run a brief test while you can still hear it. The hospital shift alert will not sound if the browser has stopped running or the computer has gone to sleep, so it should not be the sole signal for leaving the ward.

Once the overnight handover is finished, keep the trip home and the next few hours simple. At 3:50 am, bright screens and extra errands can eat into the sleep still available before daytime noise begins. Prepare keys, transport details and anything needed at home earlier in the shift, then use the alarm as the point to wrap up and move directly into that plan.

Common questions

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.

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.