Your scheduled alarm time has been reached.
Online Clock — Fullscreen Digital Clock & Daily Alarm | Cruse
Free fullscreen digital desk clock with live seconds, 12h/24h formats, local timezone display, and daily alarm. Perfect ambient display for monitors and tablets.
ツールの使い方
1. View Live Local Time
Displays your current local system time, seconds, day of week, full date, and detected timezone automatically.
2. Toggle 12H / 24H Format
Click the "Format" button in the upper corner to switch between 12-hour AM/PM and standard 24-hour military clock formats.
3. Set Daily Wake-Up Alarm
Enter your desired alarm time (e.g. 07:30 AM) and click "Set". A synthesized Web Audio chime sounds when the scheduled time arrives.
4. Fullscreen Ambient Desk Clock
Click the Fullscreen icon to turn any second monitor, laptop, iPad, or tablet into a minimalist, ambient digital desk clock.
技術仕様・標準規格
| Parameter / Standard | Specification |
|---|---|
| Time Synchronization | 1,000 ms hardware-synced clock ticker verified against local system UTC |
| Display Formats | Instant toggle between 12-hour (AM/PM) and 24-hour military time formats |
| Audio Alarm | Synthesized Web Audio API bell chime. 100% reliable, zero downloads, works offline |
| Timezone Detection | Automatic IANA local timezone detection (e.g. Asia/Kolkata, America/New_York) |
| Display Modes | Standard web view and distraction-free Fullscreen Ambient Desk Clock |
| Privacy & Offline | Runs 100% locally in browser memory without external requests or telemetry |
よくある質問
How accurate is this online digital clock?
The clock syncs directly with your device's internal hardware clock and operating system time daemon, updating smoothly each second.
How does the daily alarm sound work?
When your scheduled alarm time matches the current system time, the tool triggers a native Web Audio API chime. Click "Dismiss Alarm" to silence it.
Can I switch between 12-hour and 24-hour display?
Yes! Click the format toggle button in the top-right corner of the clock card to switch between 12H and 24H instantly.
Where can I find a countdown timer or stopwatch?
Use the quick navigation bar at the top of the card to switch directly to our dedicated Online Timer, Stopwatch, or Event Countdown.