Alarm Clock Features
Multiple Alarms, Ping Me, and More
Our free online alarm clocks are designed to be fast, flexible, and easy to customize for how you work throughout the day. Whether you need a simple wake-up alarm, reminders while working, or a fully customized clock with 25 separate alarms, our alarm clocks can meet your needs.
From quick one-click reminders to scheduled alarms with custom sounds, everything runs directly in your browser with no software to install . . .
Alarms & Scheduling
Multiple Alarms
Up to 25 separate alarms, each with its own time, title, sound, volume, and display color.
Flexible Time Entry
Enter alarm times naturally using formats like 2pm, 3:05, 10, noon, or midnight.
Clock Display
Large Display
Make the time fill your window for a bold, easy-to-read display that works well on desks, classrooms, and shared spaces.
Resizable Display
Resize your browser window and the clock automatically adjusts to fit your layout.
Accurate Time
The clock stays in sync with your computer's local time with no noticeable drift.
Next Alarm
Optionally display the next upcoming alarm beneath the clock so you know what's coming next.
Time Formats
Choose how time is shown with options for 12-hour or 24-hour format, AM/PM, seconds, colons, blinking separators, and leading zero settings.
Time Adjust
Shift the displayed time by -23 to +23 hours to view other time zones or time offsets.
Display Customization
Customize the appearance of the clock including font, size, color, shadow, and bold styling.
Title & Tagline
Set a custom title or hide the title and tagline for a cleaner, minimal clock display.
Dark Mode
Switch between light and dark mode for comfortable viewing in any lighting environment.
Instant Reminder
Ping Me
Fast, frictionless reminder when you don't want to edit your alarm schedule. Set a reminder in seconds. Use preset buttons like 5, 10, 15, 30, 45, or 60 minutes, or type in a time.
On desktop, simply type a number like 7 to instantly set a 7-minute reminder. No dialogs or setup required. Designed for quick, temporary reminders outside your alarm schedule.
Audio & Alerts
Alarm Sounds
Use built-in sounds or link to audio files available on the web. Set volume and repeat cycle count for each alarm.
Continuous Play
Play a sound or web-based audio for a set period of time instead of a single alert. Useful for classroom transitions, cleanup time, or timed activities where audio plays for a set duration
Interaction, Saving, & Sharing
Keyboard Shortcuts
Use keyboard shortcuts to control the alarm clock quickly. For example, Escape stops alarm sounds, and Backspace can cancel a pending Ping reminder. Custom shortcuts can be configured in advanced settings.
Save Your Setup
Bookmark different alarm setups so you can quickly return to your preferred configuration.
Share Alarm Clock Setups
Share your alarm clock links so others can load the exact same setup.
Customization & Presentation
Customize Look
Adjust the full visual style of the clock including colors, fonts, backgrounds, and layout options to create a personalized experience.
Chroma Key Support
Set the background to a solid color for use with video overlays, streaming, or presentations.
For help using our alarm clocks visit the Alarm Clock Help page.