AVA.

Set Alarm for 2:45 AM

A free online alarm clock preset to 2:45 AM. Press Start, leave this tab open, and it will ring at 2:45 AM sharp.

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Alarm set for 2:45 AM

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

Waking up at 2:45 AM

Alarms set for 2:45 AM cover the schedules nobody designs on purpose: jet lag that flips day and night, a nap before a night drive, a split-sleep experiment, or simply a body clock that runs on its own timetable.

The core rule survives any schedule — wake at the end of a cycle, not in the middle of one. From 2:45 AM, count back: asleep by 7:15 PM for five full cycles, or 5:45 PM for the whole nine hours. Consistency at strange hours still counts as consistency.

Keep the wake-up mechanics boring and reliable: volume high, phone out of arm’s reach, water beside the bed. At this hour a missed alarm has real consequences, so let the routine do the work — not your middle-of-the-night judgment.

FAQ

How do I set an alarm for 2:45 AM?
Press Start above — the page counts down to the next 2:45 AM and plays a loud beep through your browser. Keep this tab open and your volume up. No download or signup needed.
What time should I go to bed to wake up at 2:45 AM?
To get 7.5 hours of sleep (five full 90-minute cycles), be asleep by 7:15 PM. For a full nine hours, aim for 5:45 PM. Add about 15 minutes for actually falling asleep.
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. For alarms that ring reliably even over the lock screen, use the AVA app.

Nearby alarm times

2:15 AM 2:30 AM 3:00 AM 3:15 AM