What is a split-flap display?
Split-flap displays, also called Solari boards, were used in airports and train stations before digital screens. Each character is printed on two halves that flip to reveal the next one, with that well-known mechanical motion.
Can I use it as a screensaver or desk clock?
Yes. Open it on a spare tablet or a second monitor and go full screen. The buttons fade when you are not using them, so only the clock shows.
Does the timer have an alarm?
Yes. The countdown timer plays an alarm sound when it reaches zero. You can start, stop and reset it.
How does the world clock work?
Add up to five cities with their hour offsets. The clock rotates between them every 5 to 60 seconds; the hours cascade to the new city’s time and the city name flips in letter by letter. It starts with New York, London and Tokyo, which you can rename or remove.
Can I add my own text to the flip clock?
Yes. A custom text row in letter flaps can sit above the clock or below the date, for a welcome message, a studio name or a countdown title.
Does it show 24-hour time?
Yes. Choose AM/PM or 24-hour time, and show or hide the seconds.
Will it keep my settings?
Yes. Your mode, colours, cities and text are saved in your browser on that device.
Does it work on a phone?
Yes. In portrait, the hours, minutes and seconds stack as three big flaps; in landscape they sit side by side.
Does it make the clicking sound?
No. The flips are silent, so the clock stays quiet on your desk. Only the countdown timer has a sound: an alarm at zero that rings for as long as you set, from 1 to 60 seconds.