Countdown Timer from Timestamp

Turn any future timestamp into a live countdown, or any past timestamp into an elapsed timer. Watch the seconds tick down or up in real-time.

Countdown Timer from Timestamp

Create a live countdown timer based on a Unix timestamp

Target Timestamp

Enter a future Unix timestamp (seconds or milliseconds)

Target Date

How it works

Enter a target Unix timestamp or select a date and time. The countdown timer calculates the time remaining and displays it in days, hours, minutes, and seconds, updating every second.

The timer shows both the time remaining and the target date in human-readable format. When the target time is reached, the display changes to indicate the countdown has completed.

Optional features include audio alerts when countdown completes, visual progress indicators, and the ability to pause/resume the countdown. Copy the target timestamp or share the countdown configuration.

When You'd Actually Use This

Product Launches

Track time until product releases, feature launches, or version deployments.

Event Management

Monitor countdown to webinars, conferences, meetings, or live streams.

Deadline Tracking

Keep visible countdowns for project deadlines, submissions, or deliverables.

Sale End Times

Display countdown to sale endings for e-commerce urgency and FOMO.

Personal Goals

Track time until vacations, retirements, or personal milestone dates.

System Maintenance

Show countdown to scheduled maintenance windows or system cutover times.

What to Know Before Using

Target timestamp: Enter Unix timestamp (seconds or milliseconds) or use the date picker to select target date and time visually.

Timezone awareness: The countdown uses your local timezone. Target times are interpreted in your browser's timezone.

Browser tab: Countdown continues while the tab is open. Closing the tab stops the countdown. Keep tab open for continuous display.

Past dates: If target date is in the past, the timer shows negative time or "completed" status depending on configuration.

Audio alerts: Optional sound plays when countdown reaches zero. Requires browser permission for audio playback.

Common Questions

How do I set a countdown timer?

Enter the target timestamp or use the date picker to select date and time. The countdown starts automatically and updates every second.

Can I pause the countdown?

Yes. Use the pause button to temporarily stop the countdown. Resume when ready to continue counting down.

What happens when countdown ends?

The display changes to show "Time's up!" or similar message. Optional audio alert plays if enabled.

Can I count up from a past date?

This tool counts down to future dates. For elapsed time from past dates, use the timestamp difference calculator.

Does it work on mobile?

Yes. The countdown is responsive and works on phones, tablets, and desktops. Keep the browser tab open.

Can I share the countdown?

Share the target timestamp or date. Others can set up their own countdown to the same moment using this tool.

How accurate is the timer?

Updates every second using your device's clock. Accuracy depends on system clock synchronization. Good for general use.

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Countdown Timer from Timestamp