Set Alarm for 5:30 PM

A free online alarm clock preset to 5:30 PM. Press Start, leave this tab open, and it will ring at 5:30 PM sharp.

Keep this tab open. For alarms that work with your phone locked, get AVA.

Waking up at 5:30 PM

A 5:30 PM alarm often stands guard over the gap between work and evening plans: a 40-minute recovery nap after the commute, a reminder to leave for the match, a medication window. Short evening naps are fine — it is the accidental two-hour ones that wreck the night, and that is what the alarm prevents.

5:30 PM alarms are the unsung heroes of nappers and night-shift workers. Whether you are capping a siesta or waking ahead of an evening shift, a hard stop keeps daytime sleep from swallowing the rest of the day.

If this is a nap alarm, keep it short or go long: either 20–25 minutes (you stay in light sleep and wake refreshed) or a full 90-minute cycle. Anything in between tends to end mid-deep-sleep and leaves you foggier than before you lay down. Starting the countdown to 5:30 PM the moment you lie down makes that decision for you.

If you are on nights and 5:30 PM is your morning, treat it like one: blackout curtains until the alarm, then bright light, water and real food right after. Your body clock takes its cues from what you do in the first half hour after waking, whatever the wall clock says.

FAQ

How do I set an alarm for 5:30 PM?

Press Start above — the page counts down to the next 5:30 PM and plays a loud beep through your browser using the WebAudio API. Keep this tab open and your volume up. No download or signup needed.

How long should a nap be if I want to wake at 5:30 PM?

Count backwards from 5:30 PM: lie down 20–25 minutes before for a light power nap, or a full 90 minutes before for one complete sleep cycle. Both beat the 45–60 minute middle ground, which usually ends in deep sleep and grogginess.

Will the alarm ring if my screen is off or the tab is closed?

No — a browser alarm needs this tab open and the device awake. If the phone locks or the tab closes, the beep cannot play. For alarms that ring reliably even over the lock screen, use the AVA app.

Nearby alarm times

All alarm times · How much sleep do I need? · Sleep inertia explained · Oversleeping: causes and fixes