Binary Clock Decoder
Decode binary clock displays showing time in BCD (Binary-Coded Decimal) format. Supports various binary time representations.
Enter binary digits (e.g., '0001 0010 : 0010 0101' for 12:25)
Binary Clocks
A binary clock displays time using binary numbers, typically in BCD (Binary-Coded Decimal) format where each decimal digit is shown as 4 binary bits.
Reading BCD Time
Each column of LEDs represents one digit. Read from top to bottom as 8-4-2-1:
- Add values of lit LEDs to get the digit
- Example: ●○●● = 8+0+2+1 = 11 (invalid for single digit, so 1011 = B in hex)
Column Values
- Hour tens: 0-2 (only needs 2 bits)
- Hour ones: 0-9 (needs 4 bits)
- Minute/Second tens: 0-5 (needs 3 bits)
- Minute/Second ones: 0-9 (needs 4 bits)
Binary Clocks in Puzzles
Binary clock puzzles might show:
- Photos of binary clock displays to decode
- LED patterns representing coordinates
- Time-based puzzle elements in binary
- Dot patterns that form binary numbers