Utilities
Set Theory Clock (BerlinClock)
By Stefan Neumann
Download on theApp Store ↗Free · US storefront
App Store rating★ 3.73 ratings
Age rating4+Apple content rating
CompatibilityiOS 17.6+Check your device
Version1.3Updated 2026-02-18
About Set Theory Clock (BerlinClock)
The Berlin Clock consists of 24 lamps arranged in 4 rows.
The top two rows (red) represent the hours, and the bottom two rows (yellow) represent the minutes. Additionally, a circular yellow lamp at the top flashes every 2 seconds.
In the top rows of each color, each lamp represents 5 hours or 5 minutes, respectively, while in the bottom rows, each represents 1 hour or 1 minute. The lamps light up from left to right and from bottom to top. Once a row is full, all lamps turn off and another lamp lights up in the row above it.
The top two rows (red) represent the hours, and the bottom two rows (yellow) represent the minutes. Additionally, a circular yellow lamp at the top flashes every 2 seconds.
In the top rows of each color, each lamp represents 5 hours or 5 minutes, respectively, while in the bottom rows, each represents 1 hour or 1 minute. The lamps light up from left to right and from bottom to top. Once a row is full, all lamps turn off and another lamp lights up in the row above it.
A closer look
What’s new in version 1.3
- Almost rewritten to fit all Display sizes.
- Keep screen awake via Setting possible
