Daylight Saving Countdown Screensaver
The Daylight Saving Countdown screensaver counts down to the next real daylight saving time transition, computed from the real calendar rules used across major time zones. It is free, runs in your browser, and ESC exits.
How the Daylight Saving Countdown screensaver works
The saver computes the next real daylight saving time transition using the real calendar rule for the selected region.
A live countdown ticks down to the real moment clocks change.
The computation runs entirely in your browser — no network fetch is needed.
Regions that do not observe daylight saving are also supported, showing a real "not observed" state.
A worked example
In a region observing daylight saving, the countdown reaches the real second clocks are due to spring forward or fall back, then resets to the next real transition.
Settings & tips
- Accent recolours the countdown digits.
- The transition dates follow each region's real legal calendar rule.
- No internet connection is required — the math runs locally.
Frequently asked questions
- Is this a real countdown?
- Yes — it computes the real next daylight saving transition from real calendar rules.
- Is a key needed?
- No — it is a pure local calculation.
- What if my region doesn't observe DST?
- A real "not observed" state is shown instead of a countdown.
- Is it free?
- Yes — free, no download, in your browser.