Alarm Clock

Free online alarm clock simulator, support custom time and reminder message, provide desktop notification and sound reminder.

Features

• Real-time display of current time and date
• Support custom alarm time
• Editable reminder message content
• Provide 6 quick preset times
• Play alert sound when time is up
• Support desktop notification reminder
• One-click stop alarm function
• Responsive design, support mobile devices
• Dark/light theme switching
• Internationalization support (Chinese/English)

Usage Instructions

1. Set alarm time in time picker
2. Optional: Edit custom reminder message
3. Click "Set Alarm" button to enable alarm
4. Can cancel set alarm at any time
5. Click "Stop Alarm" to turn off alert when alarm rings

Quick Preset Times

• 7:00 AM
• 8:00 AM
• 9:00 AM
• 12:00 PM
• 2:00 PM
• 6:00 PM

Application Scenarios

• Daily wake up reminder
• Work meeting reminder
• Lunch break alarm
• Study time reminder
• Exercise timing reminder
• Medication reminder

Notes

• Need to enable browser notification permission to receive desktop notifications
• Alarm settings will be lost after page refresh
• It is recommended to keep the browser tab active to ensure alarm accuracy
• Audio playback requires user interaction authorization
• Minimizing browser may affect notification timeliness