Alarm Clock Set for 3:20 AM

Set a free alarm for 3:20 AM that rings right in your browser - no app or sign-up. Choose a sound, test the volume, and keep the tab open.

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Setting Your Alarm for 3:20 AM

The alarm controls are pre-set to 3:20 AM. Choose a sound, use Test Sound to confirm your volume, then press Set Alarm. Keep this tab open and the device awake until the alarm rings.

What this 3:20 AM preset does

Where 3:20 AM sits in the day

3:20 AM is twenty minutes past three and falls in the late night. This time falls after midnight and before the pre-dawn hours. It is 20 minutes after the hour and 40 minutes before 4:00 AM.

The 3 AM hour is still pre-dawn in most daily schedules and is easily confused with 3 PM when an alarm is entered quickly. This preset is one third of an hour past the hour, with forty minutes remaining until the next one.

Twenty past is closer to the half-hour than to the start of the hour. Confirm that the schedule says twenty past, because moving to the nearby quarter-past preset changes the alert by five minutes and moving to half past changes it by ten.

Measured forward from 3:20 AM, the next noon is 8 hrs 40 min away. This makes it easier to check whether the preset belongs to the intended half of the day before activating it.

For a late-night alarm, verify both the AM setting and the calendar date associated with the task. Browser alarms depend on an awake device and an open tab, so use a system alarm or another device as the primary safeguard when missing the cue would matter.

Plan backwards from 3:20 AM

If 3:20 AM is the actual start time, an earlier alert can reserve preparation time. Choose the 3:10 AM alarm for a 10-minute warning, the 3:05 AM alarm for 15 minutes, or the 2:50 AM alarm for a 30-minute buffer. Keep this 3:20 AM preset as the final cue if you need both a warning and an exact-time alarm.

If the task can start a little later, the 3:30 AM preset moves the cue 10 minutes after 3:20 AM. Use the time that matches the action you need to take; an alarm label such as “leave now,” “join meeting,” or “stop task” is clearer than a label containing only the time.

3:20 AM at a glance

12-hour time3:20 AM
24-hour time03:20
Military time0320 (zero three twenty hours)
Written in wordsTwenty minutes past three
Spoken timeThree twenty AM
Part of dayLate Night
Minutes since midnight200
Seconds since midnight12,000
Day completed at this time13.89%
Time remaining to next midnight20 hrs 40 min
Smaller clock-hand angle20.0°

Possible uses for a 3:20 AM alarm

This preset can be used for any task tied to 3:20 AM. Depending on your own schedule, examples include:

For a task-focused setup, see the reminder alarm guide. To choose a completely different time, browse all online alarm presets.

Time from each whole hour to 3:20 AM

The table shows the forward interval from the start of each hour to the next occurrence of 3:20 AM.

Whole-hour reference
From 12:00 AM 3 hrs 20 min 200 min
From 1:00 AM 2 hrs 20 min 140 min
From 2:00 AM 1 hr 20 min 80 min
From 3:00 AM 20 min 20 min
From 4:00 AM 23 hrs 20 min 1,400 min
From 5:00 AM 22 hrs 20 min 1,340 min
From 6:00 AM 21 hrs 20 min 1,280 min
From 7:00 AM 20 hrs 20 min 1,220 min
From 8:00 AM 19 hrs 20 min 1,160 min
From 9:00 AM 18 hrs 20 min 1,100 min
From 10:00 AM 17 hrs 20 min 1,040 min
From 11:00 AM 16 hrs 20 min 980 min
From 12:00 PM 15 hrs 20 min 920 min
From 1:00 PM 14 hrs 20 min 860 min
From 2:00 PM 13 hrs 20 min 800 min
From 3:00 PM 12 hrs 20 min 740 min
From 4:00 PM 11 hrs 20 min 680 min
From 5:00 PM 10 hrs 20 min 620 min
From 6:00 PM 9 hrs 20 min 560 min
From 7:00 PM 8 hrs 20 min 500 min
From 8:00 PM 7 hrs 20 min 440 min
From 9:00 PM 6 hrs 20 min 380 min
From 10:00 PM 5 hrs 20 min 320 min
From 11:00 PM 4 hrs 20 min 260 min

Before you rely on this alarm

Confirm the displayed time, device volume, and audio output. For an important wake-up, appointment, or safety-critical reminder, use a phone or another device as a backup.

Nearby alarm options

If 3:20 AM is close but not exact, these nearby presets let you move the alarm by 5, 10, or 15 minutes without returning to the full directory. Pick an earlier time to create a buffer, or a later time when the task can wait.

3:20 AM alarm questions

What is 3:20 AM in 24-hour and military time?

3:20 AM is 03:20 on a 24-hour clock and 0320 in military time.

What part of the day is 3:20 AM?

3:20 AM falls in the late night. This time falls after midnight and before the pre-dawn hours.

Will this browser alarm work for 3:20 AM if the tab is closed?

No. Keep this Alarm.now tab open and your device awake. Background tabs can continue running, but closing the tab, quitting the browser, or putting the device to sleep stops the web alarm.

Can I change 3:20 AM?

Yes. Change the hour, minute, or AM/PM control before pressing Set Alarm, or open another nearby preset below.

Alarm times:

Browse every five-minute alarm preset