Equinox & Solstice Countdown Screensaver
The Equinox & Solstice Countdown screensaver counts down to the next real equinox or solstice, computed from real published astronomical timing tables. It is free, runs in your browser, and ESC exits.
How the Equinox & Solstice Countdown screensaver works
The saver looks up the real published UTC moment of the next equinox or solstice from an astronomical timing table.
A live countdown ticks down to that real exact moment.
Once passed, the saver automatically advances to the next real seasonal marker.
The computation runs entirely in your browser — no network fetch is needed.
A worked example
As the countdown reaches zero at the real published moment of the solstice, the display automatically advances to count down to the real next equinox.
Settings & tips
- Accent recolours the countdown digits.
- Timings are the real precise UTC moments, not just calendar dates.
- No internet connection is required — the lookup runs locally.
Frequently asked questions
- Is this a real countdown?
- Yes — it counts down to the real published UTC moment of each equinox and solstice.
- Is a key needed?
- No — it uses a local, pre-loaded real astronomical table.
- Why isn't the date always the same?
- Equinoxes and solstices shift by about a real day each year due to the calendar and leap years.
- Is it free?
- Yes — free, no download, in your browser.