Online Countdown

A countdown shows how much time is left until a specific moment. It can count down to a date like a birthday, a holiday, or a deadline — updating continuously with days, hours, minutes, and seconds remaining.

This online countdown timer is a simple browser tool that counts down to a future date and time. It’s useful for planning, building excitement, and keeping an eye on a key milestone without doing manual time math.

If you need a countdown from a duration (like 25 minutes), use the online timer instead.

1. Set the target date and time (or choose a preset).
2. Optionally add a countdown name.
3. Click Start to begin the countdown, and Stop to end it early.

While the countdown is running, it shows the remaining days, hours, minutes, and seconds. When it reaches zero, an alert can play an alarm sound.

Countdowns can be shared. Use the share button to copy a link that opens the same target date on another device.

Customize what you see on screen:

• Switch time zones for the countdown display.
• Toggle dark mode.
• Show or hide the event name, seconds, and date/time details.
• Enable mirror mode for filming or reflective displays.
• Use full-screen mode and zoom controls for readability at a distance.

A countdown clock can add urgency and excitement for launches and special offers. Use the embed option to generate an iframe, choose a size, copy the embed code, and paste it into your site.

If you use online countdown often, bookmark this page or pin it as a shortcut so it’s always one tap away. For the best experience, keep the tab open and interact with the controls once so your browser allows audio alerts, permission prompts, or full-screen mode when needed.

For presentations, classrooms, or a second monitor, try full-screen mode. It centers the tool and removes distractions, and the zoom buttons let you fit the display to your viewing distance.