Eclipse Countdown Screensaver
The Eclipse Countdown screensaver is a live countdown to the next solar and lunar eclipse, with a disc that darkens as the date nears, from a built-in 2026-2030 table. It's computed on your device, runs in your browser, and ESC exits.
How the Eclipse Countdown screensaver works
The saver holds a table of every solar and lunar eclipse from 2026 through 2030, with each one's type and date.
It finds the next eclipse and counts down to it in days, hours, minutes and seconds.
A central disc previews the event — a Moon sliding across the Sun, or the Moon slipping into Earth's red shadow — darkening as the date approaches.
You can show solar eclipses, lunar eclipses, or both; everything is computed locally.
A worked example
The countdown might read 184d 06:12:40 to a Total Solar Eclipse, the bright disc slowly being bitten into by a dark Moon, with the next few eclipses listed in a row beneath.
Settings & tips
- Show filters to solar, lunar, or both kinds.
- Background sets the sky backdrop.
- Dates are UTC, from a built-in 2026-2030 table.
Frequently asked questions
- Are the eclipse dates accurate?
- Yes. They come from the published eclipse canon for 2026-2030, so the type and date of each are correct.
- Does it need a connection?
- No. The table and countdown are computed on your device, so it runs fully offline.
- Will I see the eclipse where I live?
- Not necessarily — visibility depends on your location. The saver shows the date; check a local eclipse map for your view.
- What happens after 2030?
- The built-in table runs to 2030; the saver counts down to the last entry until the table is extended.
- Is it free?
- Yes — free, no download, no key, in your browser.