Set the alarm clock for 4:18 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 4:16 amAlarm clock for 4:17 amAlarm clock for 4:19 amAlarm clock for 4:20 am
All alarms from 4:00 am to 4:59 am →

Going to bed for a 4:18 am alarm

  • Asleep by 7:03 pm — 6 full sleep cycles, about 9 hours
  • Asleep by 8:33 pm — 5 full sleep cycles, about 7 hours
  • Asleep by 10:03 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.

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Online timerOnline stopwatchCountdownDate calculatorsCalendar and datesPublic holidaysAll tools →

Online alarm clock for 4:18 am

While preparing for an Otago frost check, set the alarm for 4:18 am before laying out your torch, warm layers, and greenhouse keys. That gives you a clear starting point for inspecting covers, vents, and heaters ahead of the coldest pre-dawn conditions. You will still have time to act before 5:00 am if something needs adjusting.

For this greenhouse check, confirm now that your phone is allowed to make sound and is not left in silent mode. Set the alarm, then use the preview or test sound if available so you know what you will hear. Keep the browser running and the phone awake overnight: otherwise, the greenhouse check may be missed because a browser alarm cannot sound after the page is closed or the phone sleeps.

Because a 4:18 am alarm can carry through a quiet house, place the phone close enough to wake you without turning the volume higher than necessary. If anyone else is sleeping nearby, choose a brief tone and silence it as soon as you are up. Prepare your clothes and inspection gear away from bedrooms so drawers, doors, and footsteps do not disturb other people before you head outside.