Java-Scripts.net

Millennium Countdown Script

Tracking the distant future. This specialty script calculates the remaining time until January 1st, 3001, demonstrating high-precision date math over hundreds of years.

Time to the Year 3001

000
Days
00
Hours
00
Mins
00
Secs

Copy the Script

<div id="timer"></div>

<script>
function millenniumCountdown() {
    var now = new Date();
    var target = new Date("January 1, 3001 00:00:00");
    var diff = target - now;

    var days = Math.floor(diff / (1000 * 60 * 60 * 24));
    var hours = Math.floor((diff % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
    var mins = Math.floor((diff % (1000 * 60 * 60)) / (1000 * 60));
    var secs = Math.floor((diff % (1000 * 60)) / 1000);

    document.getElementById("timer").innerHTML = 
        days + "d " + hours + "h " + mins + "m " + secs + "s";

    setTimeout(millenniumCountdown, 1000);
}
millenniumCountdown();
</script>

Technical FAQ

We use Math.floor to round down to the nearest whole number for each time unit. This ensures we don't display partial days or seconds.

Yes. To add years, divide the total days by 365.25. However, showing total days is often preferred for long-term countdowns to avoid the complexity of variable month lengths.

The script calculates based on the visitor's local system time. The countdown will technically finish at midnight local time on the target date.