Ten at night is the classic bedtime alarm — a firm signal that the day is over. Set it below and let VClock remind you.
If you need to be up at 6 AM, a 10 PM bedtime gives you eight hours. The problem is rarely knowing this and usually noticing the time. A bedtime alarm removes the decision entirely, which is why sleep clinicians frequently recommend one.
An alarm at 10:00 PM is a cue to start winding down, not to fall asleep instantly. Counting forward from 10:00 PM shows when you would wake for a given amount of sleep:
| If you sleep… | You wake at |
|---|---|
| 9 hours | 7:00 AM |
| 8 hours | 6:00 AM |
| 7 hours | 5:00 AM |
| 6 hours | 4:00 AM |
American schedules are usually quoted in Eastern time. If 10:00 PM ET is when something starts, this is what your own clock should read:
| US time zone | Local clock time |
|---|---|
| Eastern (ET) | 10:00 PM |
| Central (CT) | 9:00 PM |
| Mountain (MT) | 8:00 PM |
| Pacific (PT) | 7:00 PM |
Note that Arizona and Hawaii do not observe daylight saving, so their offset changes twice a year. Our world clock shows live local times with daylight saving applied automatically.
Nothing needs typing: 10:00 PM is pre-filled. Pick a tone, hit Set Alarm, then leave this tab running quietly in the background. At 10:00 PM the sound loops, the clock flashes red and the browser tab renames itself to a bell so it catches your eye.
Snooze behaves exactly like a bedside clock, adding nine minutes and ringing again; Stop ends it outright. Everything is stored locally in your browser — no account, no cloud, no record of what you set. Counting a duration instead? The countdown timer is the tool for that.
If 10:00 PM is close but not quite right, the neighbouring presets are usually the fix. Every common time is listed below, and the alarm clock homepage accepts any custom hour and minute.
It suits anyone waking between 5 and 6 AM. Pair it with the 6 AM alarm and you have a full eight-hour window with time to fall asleep.
Decide in advance what the alarm means — laptop closed, television off, phone on charge in another room. An alarm without a pre-agreed action just becomes background noise.
Everything is pre-filled. Pick a tone, press Set Alarm, and keep the tab open; the alarm fires at 10:00 PM without any further input.
No. The alarm runs inside the page, so the tab must stay open. You can switch freely between other tabs and windows; just do not close this one or quit the browser.
Yes. When it rings, press Snooze and VClock creates a new alarm nine minutes later — 10:09 PM — exactly like a bedside clock.
Alarm Bell and Siren are the loudest and best for deep sleep. Chime and Soft Wake are gentler, which suits a shared room or a nap. Each sound previews when you select it.
Use the VClock timer for durations like 10 or 20 minutes rather than a fixed clock time.
Open the Timer