Countdown to the Next Century Screensaver
The Countdown to the Next Century screensaver counts down the real time remaining until January 1, 2100. It is free, runs in your browser, and ESC exits.
How the Countdown to the Next Century screensaver works
The saver computes the real exact difference between the current moment and January 1, 2100 at midnight.
Days, hours, minutes and seconds all tick down live, recalculated every frame.
The computation runs entirely in your browser — no network fetch is needed.
It is a pure calendar calculation, accurate down to the second.
A worked example
As each real second passes, the seconds digit rolls over, and every so often a full day quietly drops off the remaining count.
Settings & tips
- Accent recolours the countdown digits.
- A fun long-range novelty countdown, not a practical deadline.
- No internet connection is required — the math runs locally.
Frequently asked questions
- Is this a real calculation?
- Yes — it computes the real exact time remaining until January 1, 2100.
- Is a key needed?
- No — it is a pure local calculation.
- Is it free?
- Yes — free, no download, in your browser.
- Will I still be watching when it hits zero?
- Almost certainly not — that is rather the fun of it.